rahul can done a work in 5 days and meena can done a work in 10 days . in how many days that both are work together ?
a ' s one day work = 1 / 5 b ' s one day work = 1 / 10 a + b = 1 / 5 + 1 / 10 = 10 + 5 / 50 = 10 / 3 days ans : option b
inverse(add(divide(const_1, 5), divide(const_1, 10)))