3 sets of 40 , 50 and 60 students appeared for an examination and the pass percentage was 100 , 90 and 80 respectively . the pass percentage of the whole set is
total passed student = 40 + 45 + 48 = 133 133 is 88.66 % of 150 answer : c
multiply(divide(add(add(40, multiply(50, divide(90, const_100))), multiply(60, divide(80, const_100))), add(add(40, 50), 60)), const_100)