a can do a work in 24 days and b can do it in 8 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 / 8 they work together = 1 / 24 + 1 / 8 = 6 days answer : option c"
divide(const_1, subtract(divide(const_1, 8), divide(const_1, 24)))