Page 89 - Math_Genius_V1.0_C8_Flipbook

E:\Working\Focus_Learning\Math_Genius-8\Open_Files\04_Unit Test_1\Unit Test -1
\ 07-Jan-2025 Bharat Arora Proof-2 Reader’s Sign _______________________ Date __________

Unit test – 1

A. Choose the correct option in Questions 1 to 10.

1. How many rational number(s) are there between 0 and 1?
(a) 0 (b) 1 (c) 2 (d) infinite

2
2. The additive inverse of is
5
5 2 5 2
(a) − (b) − (c) (d)
2 5 2 5
3. If a number is multiplied by 3 and 8 is added to the product to get the answer 17, then the
number is

(a) 3 (b) 5 (c) 8 (d) 11
x 1 x 1
4. The value of x for + = + is
3 2 5 10
(a) 3 (b) –3 (c) 12 (d) –4

5. Number of diagonals in a polygon with 7 sides is
(a) 7 (b) 9 (c) 11 (d) 14
5 − 9 8
6. The product of × × × 10 is
3 20 20
(a) 5 (b) –5 (c) –3 (d) 3
7. The breadth of a rectangle is 6 cm and the length is 2 cm longer than its breadth. If its
perimeter is 28 cm, then its length is

(a) 6 cm (b) 8 cm (c) 10 cm (d) 12 cm
8. In parallelogram ABCD, if ∠C = 77.5°, then ∠A : ∠B is
(a) 3 : 4 (b) 4 : 3 (c) 31 : 41 (d) 41 : 31

Directions. (For Qs 9–10): In the following questions, a statement of Assertion (A) is followed
by a statement of Reason (R). Choose the correct option.
(a) Both Assertion (A) and Reason (R) are true and Reason (R) is a correct explanation of
Assertion (A).

(b) Both Assertion (A) and Reason (R) are true but Reason (R) is not a correct explanation
of Assertion (A).
(c) Assertion (A) is true but Reason (R) is false.
(d) Assertion (A) is false but Reason (R) is true.

9. Assertion (A): 4 ÷ 8 ≠ 8 ÷ 4.
Reason (R): Division is not commutative for rational numbers.

10. Assertion (A): We can construct a unique quadrilateral when measures of 3 sides and 2
diagonals are given.

Reason (R): At least four measurements are required to construct a unique quadrilateral.

87