Fidelity6id
Answered

a class has 40 pupils. 2/5 of them are boys, how many are girls?
5 parts =40
1 part=?
2 part=?
3 part=?

Sagot :

KookEinid
Girls: 24
Boys: 16

First, multiply 2/5 by 40.
   2/5 X 40/1 = 80/5

Then, divide it.
   80 ÷ 5 = 16
*The answer will be the number of boys.

Subtract the number of boys by the total number of students which is 40.
   40 - 16 = 24
*The answer will be the number of girls.

Checking:
 24 + 16 = 40
 40 = 40
                                                                                -KookEin

Hi! Sad to say but, I don't understand the thing with the 'parts'. Good luck with it. :)