in a school of 850 boys , 34 % of muslims , 28 % hindus , 10 % sikhs and the remaining of other communities . how many belonged to the other communities ?
"34 + 28 + 10 = 72 % 100 – 72 = 28 % 850 * 28 / 100 = 238 answer : d"
divide(multiply(850, subtract(const_100, add(add(34, 28), 10))), const_100)