Question

6.
In class of 40 pupils the number of girls is three-fifths of the number of boys. Find the
number of boys in the class.
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Answer 1

Answer:

let x be the nmbr of boys.

then no of girls = 3x/5

3x/5 + x = 40

8x/5=40

8x=200

x = 25

25 is the required answer

Step-by-step explanation:

Answer 2

Step-by-step explanation:

let the no. of boys be x

then the no. of girls =3/5x

now

x+3/5x=40

5x+3x___5=40

8x÷5=40

8x=40×5

x=200÷8

x=25