In a school, the ratio of number of boys to the number of girls is 9:7. Find the number of boys if the total number of students is 3200.
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Let x be the common multiple of the ratio.
The ratio of number of boys to the number of girls
= 9:7
Total number of students = 3200
No of boys = 9x
No of girls = 7x
So the equation will be,
9x + 7x = 3200
16x = 3200
x = 3200/16
x = 200
No of boys = 9x = 9(200) = 1800
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3
Answer:
no of boy=1800
no of girls=1400
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