Question

Karen has 21 green blocks. The ratio of green blocks to the yellow blocks she owns is 3:1. How many blocks does she own?​

Answer 1

28 blocks

Step-by-step explanation:

Amount: 21 + y

Ratio: 3:1

Total Ratio: 4

1 = yellow blocks

say if 3 is to 1 then 21 is to how many?

21 ÷ 3

= y = 7

= 21 + 7

= 28 blocks

( or you can use the practical method using your fingers )