the ratio of the number of boys and girls in a class is 9 ratio 5 find the number of boys if the total number of student in the class is 42
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Let the coefficient be x.
No. of boys = 9x
No. of girls = 5x
As per the question,
9x + 5x = 42
=> 14x = 42
=> x = 3.
So, Number of boys = 9*3 = 27.
No. of boys = 9x
No. of girls = 5x
As per the question,
9x + 5x = 42
=> 14x = 42
=> x = 3.
So, Number of boys = 9*3 = 27.
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