Page 41 - Mathematics Class - X

Assertion-Reason Based Questions
Assertion-Reason Based Questions
Directions for Questions 1 to 3: In each of the questions given below, there are two statements marked as
Assertion (A) and Reason (R). Mark your answer as per the codes provided below:
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.

(c) A is true but R is false. (d) A is false but R is true.
Q. 1. Assertion (A) : If n term of an A.P. is 7–4n, then its common difference is –4.
th
Reason (R) : Common difference of an A.P. is given by d = a – a .
n + 1 n
Q. 2. Assertion (A) : Sum of the first hundred even natural numbers divisible by 5 is 500.
n
Reason (R) : Sum of first n terms of an A.P. is given by S = (a + l) where l is the last term.
n 2
Q. 3. Assertion (A) : Common difference of an A.P.: –5, –1, 3, 7 ______ is 4.

Reason (R) : Common difference of an A.P. a, a + d, a + 2d ______ is given by
d = 2 term –1 term.
nd
st

Crossword Puzzles
Crossword Puzzles
Complete the following crossword puzzles with the help of given hints.

1. 2.

3.
4.
Across

1. Graph of the quadratic polynomial is ___________ .

4. parallel lines ___________ cut each other.

5. If b -4ac = 0 then the both roots are ___________ and equal.
2
5.
6. Maximum numbers of zeros in quadratic equation are
___________.
6.
Down

2. ax + by + c = 0 is a ___________ equation in two variables.

3. ___________ lines indicates only one solution.

Answers

Case-Study Based Questions: 1. 48 2. 12

Assertion-Reason Based Questions: 1. (a) 2. (d) 3. (a)
Crossword: Down: 2. Linear 3. Intersecting
Across: 1. Parabolic 4. never 5. real 6. two

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