1.Math is an essential subject that provides students with a foundation of analytical and logical reasoning skills, which are crucial for success in all aspects of life.
2.Math helps students develop critical thinking and problem-solving abilities that can be applied in any field or career.
3.Math is the foundation of many other subjects, including science, engineering, finance, and technology.
ENGLISH (CLASS-XII)
SAMPLE QUESTION PAPER (2020-21)
Time allowed: 3 Hrs. Maximum Marks: 80
General Instructions: I
1. This paper is divided into two parts: A and B. All questions are compulsory. 2. Separate instructions are given with each section and question, wherever necessary. Read these instructions very carefully and follow them.
3. Do not exceed the prescribed word limit while answering the questions.
Part A (40 Marks)
READING (20 marks) 1. Read the passage given below. (1x10 = 10)
1. “Who doesn't know how to cook rice? Cooking rice hardly takes time.” said my father. So, I challenged myself. I switched from news to YouTube and typed, “How to cook rice?” I took one and a half cups of rice. Since I didn't have access to a rice cooker, I put the rice in a big pot. Firstly, the rice has to be washed to get rid of dust and starch. I thought I won't be able to drain the rice and that it will fall out of the pot. I observed the chef as I swirled the rice around and used my dexterous hands to drain it, not once, not twice, but three times. I looked down at the sink and saw less than 50 grains that made their way out of the pot. Suffice to say, I was up to the mark.
General Instructions:
1. This paper is divided into two parts: A and B. All questions are compulsory. 2. Separate instructions are given with each section and question, wherever necessary. Read these instructions very carefully and follow them.
3. Do not exceed the prescribed word limit while answering the questions.
Part A (40 Marks)
READING (20 marks)
1. Read the passage given below.
The choices we make on a daily basis—wearing a seatbelt, lifting heavy objects correctly or purposely staying out of any dangerous situation—can either ensure our safety or bring about potentially harmful circumstances.
You and I need to make a decision that we are going to get our lives in order. Exercising self-control, self-discipline and establishing boundaries and borders in our lives are some of the most important things we can do. A life without discipline is one that’s filled with carelessness.
We can think it’s kind of exciting to live life on the edge. We like the image of “Yeah! That’s me! Living on the edge! Woo-hoo!” It’s become a popular way to look at life. But if you see, even highways have lines, which provide margins for our safety while we’re driving. If we go over one side, we’ll go into the ditch. If we cross over the line in the middle, we could get killed. And we like those lines because they help to keep us safe. Sometimes we don’t even realize how lines help to keep us safe.
I’m not proud of this, but for the first 20 years of my life at work, I ignored my limits. I felt horrible, physically, most of the time. I used to tell myself “I know I have limits and that I’ve reached them, but I’m going to ignore them and see if or how long I can get by with it.” I ran to doctors, trying to make myself feel better through pills, vitamins, natural stuff and any thing I could get my hands on. Some of the doctors would tell me, “It’s just stress.” That just made me mad. I thought stress meant you don’t like what you do or can’t handle life, and I love what I do. But I kept pushing myself, traveling, doing speaking engagements and so on— simply exhausting myself.
Finally, I understood I was living an unsustainable life and needed to make some changes in my outlook and lifestyle.
You and I don’t have to be like everyone else or keep up with anyone else. Each of us needs to be exactly the way we are, and we don’t have to apologize for it. We’re not all alike and we need to find a comfort zone in which we can enjoy our lives instead of making ourselves sick with an overload of stress and pressure.
On the basis of your understanding of the passage, answer ANY TEN questions from the twelve that follow. (1x10=10)
i. The reason why living on the edge has become popular, is because of the a) constant need for something different.
b) population being much younger.
c) exhausting effort to make changes.
d) strong tendency to stay within our limits.
ii. Choose the option that best captures the central idea of the passage from the given quotes.
a) Option (1)
b) Option (2)
c) Option (3)
d) Option (4)
The first rule is the most essential rule. Before you delve deeper into Pinterest, you must know that consistency is critical. Most of these rules are out of order, but this is truly the number one rule for making Pinterest work for your brand. You need to consistently add content to your Pinterest account at a rate that you can keep up with. It doesn't matter if you schedule it out or manually pin it.
I would say a good number of pins to shoot for is 20 pins per day, although I know that's not always possible. I don't always hit that number myself. If you can't promise a particular number, give yourself a number of minutes to pin or schedule pins each day. For example, you may say you will invest 15 minutes a day to pinning or scheduling pins via your scheduler of choice.
Whatever you decide, try to keep it as consistent as possible. Add your schedule to your daily calendar and check it off each day.
Keywords take your Pinterest account to the next level. You should always strive to use keywords wherever they are applicable. It only takes a few moments to add keywords, and you will thank yourself later when more people see your account. Here are some places you can add keywords:
MM – 80 TIME: 3 HOURS
General instructions:
1 This question paper contains 34 questions.
2. Marks are indicated against each question.
3. Answer should be brief and to the point.
4. Answers to the questions carrying 3 marks may be from 50 to 75 worlds. 5. Answers to the questions carrying 4 marks may be about 150 worlds. 6. Answers to the questions carrying 6 marks may be about 200 worlds. 7. Attempt all parts of the questions together.
1. ------------------------- is the process of dividing work into manageable activities and then
1
grouping the activities which are similar in nature.
A. Coordination B. Departmentalisation C. Organisation Structure D. Delegation of authority
SEO Complete Course (Step by Step) A to Z Steps # Tips for 2021
SEO stands for Search Engine Optimization. SEO is all about optimizing a website for search engines. SEO is a technique for:
designing and developing a website to rank well in search engine results.
improving the volume and quality of traffic to a website from search engines.
marketing by understanding how search algorithms work, and what human visitors might search.
SEO is a subset of search engine marketing. SEO is also referred as SEO copyrighting, because most of the techniques that are used to promote sites in search engines, deal with text.
If you plan to do some basic SEO, it is essential that you understand how search engines work.
Search engines perform several activities in order to deliver search results.
Crawling - Process of fetching all the web pages linked to a website. This task is performed by a software, called a crawler or a spider (or Googlebot, in case of Google).
Indexing - Process of creating index for all the fetched web pages and keeping them into a giant database from where it can later be retrieved. Essentially, the process of indexing is identifying the words and expressions that best describe the page and assigning the page to particular keywords.
Processing - When a search request comes, the search engine processes it, i.e. it compares the search string in the search request with the indexed pages in the database.
Calculating Relevancy - It is likely that more than one page contains the search string, so the search engine starts calculating the relevancy of each of the pages in its index to the search string.
Retrieving Results - The last step in search engine activities is retrieving the best matched results. Basically, it is nothing more than simply displaying them in the browser.
Search engines such as Google and Yahoo! often update their relevancy algorithm dozens of times per month. When you see changes in your rankings it is due to an algorithmic shift or something else outside of your control.
Although the basic principle of operation of all search engines is the same, the minor differences between their relevancy algorithms lead to major changes in results relevancy.
SEO Copywriting is the technique of writing viewable text on a web page in such a way that it reads well for the surfer, and also targets specific search terms. Its purpose is to rank highly in the search engines for the targeted search terms.
Along with viewable text, SEO copywriting usually optimizes other on-page elements for the targeted search terms. These include the Title, Description, Keywords tags, headings, and alternative text.
The idea behind SEO copywriting is that search engines want genuine content pages and not additional pages often called "doorway pages" that are created for the sole purpose of achieving high rankings.
When you search any keyword using a search engine, it displays thousands of results found in its database. A page ranking is measured by the position of web pages displayed in the search engine results. If a search engine is putting your web page on the first position, then your web page rank will be number 1 and it will be assumed as the page with the highest rank.
SEO is the process of designing and developing a website to attain a high rank in search engine results.
Conceptually, there are two ways of optimization:
On-Page SEO - It includes providing good content, good keywords selection, putting keywords on correct places, giving appropriate title to every page, etc.
Off-Page SEO - It includes link building, increasing link popularity by submitting open directories, search engines, link exchange, etc.
General Instructions:
1. This question paper contains two parts A and B.
2. Both Part A and Part B have internal choices.
Part – A:
1. It consists of two sections- I and II
2. Section I has 16 questions. Internal choice is provided in 5 questions.
3. Section II has four case study-based questions. Each case study has 5 case-based sub-parts.
An examinee is to attempt any 4 out of 5 sub-parts.
Part – B:
1. Question No 21 to 26 are Very short answer Type questions of 2 mark each,
2. Question No 27 to 33 are Short Answer Type questions of 3 marks each
3. Question No 34 to 36 are Long Answer Type questions of 5 marks each.
4. Internal choice is provided in 2 questions of 2 marks, 2 questions of 3 marks and 1 question of 5
marks.
Questi
on No.
Part-A Marks
Section-I
1. Express 156 as the product of primes.
2. Write a quadratic polynomial, sum of whose zeroes is 2 and product is -8.
3. Given that HCF (96,404) is 4, find the LCM ( 96,404).
OR
State the fundamental Theorem of Arithmetic.
4. On comparing the ratios of the coefficients, find out whether the pair of
equations x – 2y =0 and 3x + 4y -20 =0 is consistent or inconsistent.
5. If a and b are co-prime numbers, then find the HCF (a, b). 1
6.Find the area of a sector of a circle with radius 6cm if angle of the sector is
60°. (Take π = 22/7)
OR
A horse tied to a pole with 28m long rope. Find the perimeter of the field where
the horse can graze. (Take π = 22/7)
7. In the given fig. DE || BC, ∟ADE =70° and ∟BAC=50°, then angle
∟BCA = ______
OR
In the given figure, AD = 2cm, BD = 3 cm, AE = 3.5 cm and AC = 7 cm. Is DE
parallel to BC ?
8 .The cost of fencing a circular field at the rate of Rs.24 per metre is Rs. 5280.
Find the radius of the field.
9. A tree breaks due to storm and the broken part bends so that the top of the
tree touches the ground where it makes an angle 30° . The distance between
the foot of the tree to the point where the top touches the ground is 8m. Find
the height of the tree from where it is broken.
10. If the perimeter and the area of a circle are numerically equal, then find the
radius of the circle
11. Write the empirical relationship among mean, median and mode. 1
12 To divide a line segment BC internally in the ratio 3 : 5, we draw a ray BX
such that ∠CBX is an acute angle. What will be the minimum number of points
to be located at equal distances, on ray BX?
13 For what values of p does the pair of equations 4x + p y +8 =0 and 2x +2y +2
=0 has unique solution?
OR
What type of straight lines will be represented by the system of equations 2x +
3y =5 and 4x + 6y = 7 ?
14 A bag contains 3 red balls and 5 black balls. A ball is drawn at random from
the bag. What is the probability that the ball drawn is red?
OR
A die is thrown once. What is the probability of getting a prime number?
15 A tower stands vertically on the ground. From a point on the ground, which is
15 m away from the foot of the tower, the angle of elevation of the top of the
tower is found to be 60°.Find the height of the tower.
16 Probability of an event E + Probability of the event E̅ ( not E) is,_______ 1
Section-II
Case study-based questions are compulsory. Attempt any 4 sub parts
from each question. Each question carries 1 mark
17.Mathematics teacher of a school took her 10th standard students to show Red
fort. It was a part of their Educational trip. The teacher had interest in history
as well. She narrated the facts of Red fort to students. Then the teacher said
in this monument one can find combination of solid figures. There are 2 pillars
which are cylindrical in shape. Also 2 domes at the corners which are
hemispherical.7 smaller domes at the centre. Flag hoisting ceremony on
Independence Day takes place near these domes.
i) How much cloth material will be required to cover 2 big domes each of radius
2.5 metres? (Take π = 22/7)
a) 75m2
b) 78.57m2
c) 87.47m2
d) 25.8m2
ii) Write the formula to find the volume of a cylindrical pillar.
a) Πr2h b) Πrl c) Πr(l + r) d) 2Πr
iii) Find the lateral surface area of two pillars if height of the pillar is 7m and
radius of the base is 1.4m.
a) 112.3cm2
b) 123.2m2
c) 90m2
d) 345.2cm2
iv) How much is the volume of a hemisphere if the radius of the base is 3.5m?
a) 85.9 m3
b) 80 m3
c) 98 m3
d) 89.83 m3
v) What is the ratio of sum of volumes of two hemispheres of radius 1cm each to
the volume of a sphere of radius 2 cm?
a) 1:1 b) 1:8 c) 8 :1 d) 1:16
18 Class X students of a secondary school in Krishnagar have been allotted a
rectangular plot of a land for gardening activity. Saplings of Gulmohar are
planted on the boundary at a distance of 1m from each other. There is a
triangular grassy lawn in the plot as shown in the fig. The students are to sow
seeds of flowering plants on the remaining area of the plot.
Considering A as origin, answer question (i) to (v)
i) Considering A as the origin, what are the coordinates of A?
a) (0,1) b) (1,0) c) (0,0) d)(-1,-1)
ii) What are the coordinates of P?
a) (4,6) b)( 6,4) c) (4,5) d) (5,4)
iii) What are the coordinates of R?
a) (6,5) b) (5,6) c) ( 6,0) d) (7,4)
iv) What are the coordinates of D?
a) (16,0) b) (0,0) c) (0,16) d) (16,1)
v) What are the coordinate of P if D is taken as the origin?
a) ( 12,2) b ) (-12,6) c) (12,3) d) (6,10)
19.Rahul is studying in X Standard. He is making a kite to fly it on a Sunday. Few
questions came to his mind while making the kite. Give answers to his
questions by looking at the figure.
i) Rahul tied the sticks at what angles to each other?
a) 30° b) 60° c) 90° d) 60°
ii) Which is the correct similarity criteria applicable for smaller triangles at the
upper part of this kite?
a) RHS b) SAS c) SSA d) AAS
iii) Sides of two similar triangles are in the ratio 4:9. Corresponding medians of
these triangles are in the ratio,
a) 2:3 b) 4:9 c) 81:16 d) 16:81
1
iv) In a triangle, if square of one side is equal to the sum of the squares of the
other two sides, then the angle opposite the first side is a right angle. This
theorem is called as,
a) Pythagoras theorem b) Thales theorem
c) Converse of Thales theorem d) Converse of Pythagoras theorem
1
v) What is the area of the kite, formed by two perpendicular sticks of length 6 cm
and 8 cm?
a) 48 cm2
b) 14 cm2
c) 24 cm2
d) 96 cm2
1
Page 7 of 11
20 Due to heavy storm an electric wire got bent as shown in the figure. It followed
a mathematical shape. Answer the following questions below.
i) Name the shape in which the wire is bent
a) Spiral b) ellipse c) linear d) Parabola
1
ii) How many zeroes are there for the polynomial (shape of the wire)
a) 2 b) 3 d) 1 d) 0
1
iii) The zeroes of the polynomial are
a) -1, 5 b) -1, 3 c) 3, 5 d) -4, 2
1
iv) What will be the expression of the polynomial?
a) x
2+2x -3 b) x2
-2x +3 c) x2
- 2x -3 d) x2 +2x+3
1
v) What is the value of the polynomial if x = -1?
a) 6 b) -18 c)) 18 d) 0
1
Part –B
All questions are compulsory. In case of internal choices, attempt
anyone.
21 Find the coordinates of the point which divides the line segment joining the
points (4, -3) and (8,5) in the ratio 3:1 internally.
2
Page 8 of 11
OR
Find a relation between x and y such that the point (x,y) is equidistant from the
points (7,1) and (3,5)
22
In the fig. if LM II CB and LN II CD, prove that
AM
MB
=
AN
ND
2
23 A quadrilateral ABCD is drawn to circumscribe a circle. Prove that AB + CD =
AD + BC.
24 Draw a line segment of length 7.8 cm and divide it in the ratio 5:8. Measure
the two parts.
2
25 Given 15 cot A =8, find sin A and sec A.
OR
Find tan P – cot R
2
Page 9 of 11
26 How many terms of the A. P : 9,17,25, .......must be taken to give a sum 636? 2
Part –B
All questions are compulsory. In case of internal choices, attempt
anyone.
27 Prove that √3 is an irrational number. 3
28 Two tangents TP and TQ are drawn to a circle with centre O from an external
point T. Prove that ∟PTQ = 2∟OPQ.
3
29 Meena went to a bank to withdraw Rs.2,000. She asked the cashier to give
her Rs.50 and Rs.100 notes only. Meena got 25 notes in all. Find how many
notes of Rs.50 and Rs.100 she received.
3
30 A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn
at random from the box, find the probability that it bears
(i) a two-digit number
(ii) a perfect square number.
(iii) a number divisible by 5.
OR
One card is drawn from a well shuffled deck of 52 cards. Find the probability of
getting
(i) A king of red colour.
(ii) A spade
(iii) The queen of diamonds
3
31 Metallic spheres of radii 6cm, 8cm and 10cm respectively are melted to form a
solid sphere. Find the radius of the resulting sphere.
3
Page 10 of 11
32 Prove that
sin A−cosA+1
sinA+cosA−1
=
1
secA−tanA
3
33 A motor boat whose speed in still water is 18 km/h, takes 1 hour more to go 24
km upstream than to return downstream to the same spot. Find the speed of
the stream.
OR
Find two consecutive odd positive integers, sum of whose squares is 290.
3
Part –B
All questions are compulsory. In case of internal choices, attempt
anyone.
34 The angles of depression of the top and bottom of a 8m tall building from the
top of a multi storied building are 30° and 45°, respectively. Find the height of
the multi storied building and the distance between the two buildings.
OR
A 1.2m tall girl spots a balloon moving with the wind in a horizontal line at a
height 88.2 m from the ground. The angle of elevation of the balloon from the
eyes of the girl at any instant is 60°.After sometime, the angle of elevation
reduces 30°.Find the distance travelled by the balloon during the interval.
5
35 The pth, qth and rth terms of an A.P. are a, b and c respectively.
Show that a(q – r) + b(r-p) + c(p – q) = 0
5
Page 11 of 11
36 A survey regarding the heights in (cm) of 51 girls of class X of a school was
conducted and the following data was obtained. Find the median height and
the mean using the formulae.
Height (in cm) Number of Girls
Less than 140 4
Less than 145 11
Less than 150 29
Less than 155 40
Less than 160 46
Less than 165 51
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