Question

6. In a class of 40 pupils , the
number of girls is three fifths of
the number of boys, find the
number of girls in the class.
a. 20
b. 25
c. 15
d. 30​

Answer 1

Answer:

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Answer 2

Answer:

15

Step-by-step explanation:

Let the no of boys be x

According to the question

= 3

$\frac{3x}{5} + x = 40 \\ \\ \frac{ 8x}{5} = 40 \\ \\ x = \frac{ 40 \times 5}{8 }$

$x = 5 \times 5 \\ x = 25 \\ boys = 25 \\girls = \frac{3}{5} \times 25 \\ = 3 \times 5 \\ girls = 15$

I hope it helps yiu