Question

60% of what number is 360? 10% of what number is 30?

Answer 1

.6X=360
X=600

.3X=30
X=100

Answer 2

60% of 600 is 360.
360/.60=600
check: 0.60*600=360

do the same to get this answer, simply change to the different numbers.
10% of 300 is 30.

Hope this helps!