Question

in a class the ratio of Male to female is 4:5,if there are 36 Males in the class then how much females are in the class?
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Answer 1

Ratio of Male to females = 4:5

No. of males = 36

Therefore, No. of females = 4×9/5×9 = 36/45 ( multiplied by 9 because 36 comes in 4's table by 9 only and if we cut 36/45 by 9 then ratio will be 4:5 only)

So, no. of females is 45.

Answer :- There are 45 females in the class.

Answer 2

Question:-

In a class the ratio of Male to female is 4:5,if there are 36 Males in the class then how much females are in the class?

Answer:-

Let take the number of female x

Number of male - 4x

Number of female - 5x

4x + 5x

9x

$9x = 36$

$x = \frac{36}{9}$

$x = 4$

The value of x is 4.

Number of female is

$5x = 5 \times 4 = 20$

Hence, The number of females is 20.