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Question

The ratio of the number of girls to the number of the boys in a class is 2:3. If total number of the students in the class is 45, then the number of the boys is:

A
27
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B
18
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C
9
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D
25
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Solution

The correct option is A 27

Total number of the students = 45

Ratio of number of girls to the number of boys = 2 : 3

Let the number of girls in the class be 2x and number of boys be 3x

According to the statement
2x + 3x = 45
5x = 45
x = 9
So, the number of the boys in the class = 3x = 3(9) = 27


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