30 % of a number is more than 60 % of 150 by 120 . find the number ?
"( 30 / 100 ) * x – ( 60 / 100 ) * 650 = 190 2 / 7 x = 210 x = 700 answer : e"
divide(multiply(add(divide(multiply(150, 60), const_100), 120), const_100), 30)