if 90 % of a = 30 % of b and b = c % of a , then the value of c is ?
"answer ∵ 90 a / 100 = 30 b / 100 = ( 30 / 100 ) x ac / 100 ∴ c = 100 x ( 100 / 30 ) x ( 90 / 100 ) = 300 correct option : d"
divide(30, 90)