20 % of a number is more than 30 % of 120 by 80 . find the number ?
( 20 / 100 ) * x – ( 30 / 100 ) * 120 = 80 1 / 5 x = 116 x = 580 answer : c
divide(multiply(add(divide(multiply(120, 30), const_100), 80), const_100), 20)