Question

45 is 15% if what number?

Answer 1

hack way
15/3=5, 5*20=100
45=15%
divide 3
15=5%
times 20
300=100%

the numbers is 300

other way

45 is 15% of what
45=0.15 times what
divide both sides by 0.15
300=what

the number is 300