a can do a work in 24 days and b can do it in 16 days . in how many days a and b can do the work ?
"explanation : a ' s 1 day ' s work = 1 / 24 b ' s 1 day ' s work = 1 / 16 they work together = 1 / 24 + 1 / 16 = 5 / 48 = 48 / 5 = 9 3 / 5 days answer : option d"
divide(const_1, subtract(divide(const_1, 16), divide(const_1, 24)))