Question

James completed 18 math problems. This is 30 percent of the problems he has to do. How many math problems must he do?

Answer 1

60 problems

Explanation:

18=30%

6=10%

6x10=60 10x10=100%

Answer 2

rule of 3:
`(18)/(30) = (x)/(100)`
1800/30=x
x=60