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Question

In a college, the ratio of the number of boys to girls is 8 : 5. If there are 200 girls, the total number of students in the college is

A
670
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B
480
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C
520
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D
300
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Solution

The correct option is C 520
Given: Ratio of number of boys to girls = 8 : 5

Now, we have to find the total number of students in the college, if there are 200 girls.

8 : 5 = (no. of boys) : 200
(both are equivalent ratios)
8 : 5 = (no. of boys) : 5 × 40
Number of boys = 8 × 40 = 320

Now, total number of students in college
= number of boys + number of girls
= 320 + 200 = 520

Therefore, the total number of students in the college is 520.

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