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E:\Working\Focus_Learning\Math_Genius-8\Open_Files\08_Unit Test_2\Unit Test-2
\ 06-Jan-2025 Bharat Arora Proof-3 Reader’s Sign _______________________ Date __________

Unit test – 2

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

1. The height of a bar in a bar graph shows the ................. of the corresponding observation.
(a) frequency (b) mean (c) median (d) mode

2. Pictorial representation of grouped data in the form of rectangles touching each other is
called a
(a) Bar graph (b) Double bar graph (c) Histogram (d) Circle graph

3. A die is thrown only once. The probability of getting a prime number is
1 2
(a) 0 (b) 1 (c) (d)
2 3
4. The number of supplementary sheets used by 25 students in an examination is as follows:
2, 1, 3, 2, 4, 5, 2, 3, 4, 5, 2, 3, 1, 2, 0, 3, 4, 1, 0, 3, 2, 1, 0, 4, 5

The range of the above data is

(a) 3 (b) 4 (c) 5 (d) 2
5. The square of 8 125× is
3
(a) 20 (b) 200 (c) 10 (d) 100
6. Which of the following is not a perfect square?

(a) 225 (b) 625 (c) 676 (d) 1001
7. How many natural numbers lie between 15 and 16 ?
2
2
(a) 30 (b) 35 (c) 36 (d) 37
8. The side of a square whose area is 7225 square metres is

(a) 75 m (b) 85 m (c) 65 m (d) 91 m
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): In the class intervals 10–20, 20–30, etc., respectively, 20 lies in the class 10–20.
Reason (R): In continuous class intervals, the upper limit of the class interval does not
included in corresponding class interval.
10. Assertion (A): The number 4488 is not a perfect square.

Reason (R): A number ending with 2, 3, 7, or 8 is never a perfect square.

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