if 70 % of a number exceeds 28 % of it by 39.9 , then find the number ?
"use the elimination method to find the correct option . of all the options only 95 fits 70 % of 95 = 66.5 28 % of 95 = 26.6 66.5 - 26.6 = 39.9 required number is 95 . answer : d"
add(divide(39.9, divide(subtract(70, 28), const_100)), 28)