Question 1 :
All hundreds are divisible by ________
(A) 8 (B) 3 (C) 25
Solution :
All hundreds are divisible by 25.
Question 2 :
Write 64 as power of 2.
(A) 25 (B) 26 (C) 28
Solution :
64 = 2 ⋅ 2 ⋅ 2 ⋅ 2 ⋅ 2 ⋅ 2
64 = 26
Question 3 :
Multiply 480 by 102
(A) 42350 (B) 48960 (C) 36000
Solution :
480 ⋅ 102 = 48960
Question 4 :
A hall is 35 meters long and 28 meters broad. Find the length of the longest tape that can measure the length and breadth of the hall a whole number of times.
(A) 3 m (B) 7 m (C) 10 m
Solution :
35 = 5 ⋅ 7
28 = 22 ⋅ 7
Length of tape that can measure the length and breadth of the hall is 7 m.
Question 5 :
Divide 62.5 by 25
(A) 2.5 (B) 5.5 (C) 6.2
Solution :
62.5 / 25
= (62.5 / 25) ⋅ (10/10)
= 625/250
= 2.5
So, the answer is 2.5.
Question 6 :
Find the value of 7/9 of 3/5
(A) 8/27 (B) 7/15 (C) 9/25
Solution :
7/9 of 3/5 = (7/9) ⋅ (3/5)
= 7/15
Question 7 :
Simplify 2/3 - ( 1/4 + 1/5)
(A) 13/60 (B) 3/17 (C) 13/14
Solution :
= 2/3 - ( 1/4 + 1/5)
= (2/3) - (5 + 4)/20
= 2/3 - (9/20)
= (40 - 27)/60
= 13/60
Question 8 :
A ream paper weighs 12.5 kg .What is the weight per quire if 20 quires make one ream?
(A) 1.63 kg (B) 0.125 kg (C) 0.625 kg
Solution :
Weight of 1 ream of paper = 12.5 kg
1 ream = 20 quires
Weight of 1 quire = 12.5/20
= 0.625 kg
Question 9 :
Convert 8% into decimal
(A) 0.08 (B) 0.8 (C) 0.008
Solution :
8% = 8/100
= 0.08
So, the decimal form of 8% is 0.08.
Question 10 :
12% of the books in a public library are mathematics books. If there are 92,000 books in a library, find the number of mathematics books.
(A) 11040 (B) 10506 (C) 16500
Solution :
Number of English books in the library is
= 12% of the total books
= 0.12 ⋅ 92000
= 11040
So,the number of English books in the library is 11040.
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