Question

Twenty-four is 30% of what number?

Answer 1

24 / 30 x 100 = 80

answer: Twenty-four is 30% of 80

Answer 2

Let the number = x
24=30%*x
24=30/100*x
24=30x/100
cross multiply
2400=30x
divide both sides by 30
2400/30=x
x = 80 
therefore 30% of 80 = 24