Question

21 is what percent of 35

Answer 1

100%/x%=35/21
(100/x)*x=(35/21)*x       - we multiply both sides of the equation by x
100=1.66666666667*x       - we divide both sides of the equation by (1.66666666667) to get x
100/1.66666666667=x 
60=x 
x=60
21 is 60% of 35

Answer 2

Let x be the % so x % of 35 ,

x/100 × 35 = 21

35x = 2100 , x = 2100/35 = 60 %