Question

If 45% of A is 4 1/5 of B, then B is what percent of A?

Answer 1

Around 10.7%

Explanation:

`45%=9/20` and `4 1/5=21/5`

We can put this into an equation...
`9/20A=21/5B`
`B=(9/20A)/(21/5)`
`B=3/28A`
`B≈10.7%*A` (3s.f.)