Question

Given: Number of males (M) : Number of females (F) = 7:6

If F = 72, then M is equal to

• A. 60
• B. 84
• C. 96
• D. 108

Answer 1

The correct option is B 84

Given ratio: Number of males (M) : Number of females (F) = 7:6

You know, Product of means = Product of extremes

$\therefore 7:6=M:72$
$\Rightarrow 6M=7\times 72$
$\Rightarrow M=\frac{7\times 72}{6}$
$\Rightarrow M=7\times 12$
$\Rightarrow M=84$

So, the value of M will be 84.