Question

There are 30 children in year 6. If 70% of the class got level 4 how many children got level 4

Answer 1

10% of 30 = 30/10 = 3

70% of 30 = 3*7 = 21

OR

Multiply 30 by 0.7 = 21

Answer 2

70 % means
`(70)/(100)`.

"of" means a multiplication.

The class is composed of 30 children.

Therefore :


`(70)/(100)*30`

`= 0.7*30`

`=21`

So, 21 children got level 4.

Hope this helps !

Photon