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Question

Mathematics Question on Percentage

In a class, 40% of the boys is same as 1/2 of the girls and there are 20 girls. Total number of students in the class is

A

70

B

45

C

35

D

25

Answer

45

Explanation

Solution

Number of girls = 20
Now, 40% of boys = 10
100%=100×1004=25\rightarrow 100\% = 100\times\frac{100}{4}=25
Therefore, Total students =20+25=4520 +25 =45
The correct answer is (B) : 45