15 is 30% of what number?
7 is what percent of 105?
10% of what number is 14?
what percent of 32 is 4?
and finally.. 1% of what number is 11?

#1---> let the number you are trying to find be x for the following questions

30%*x=15
x=15/30%
x=50

#2
10%*x=14
x=14/10%
x=140

#3
(4/32)*100
 is the same as (1/8)*100= 12.5%

#4
1%* x=11
x=11/1%
x=1100

by the way * means multiply

Dis the correct answer