p , q and r can do a work in 6 , 9 and 12 days respectively . they completed the work and got rs . 195 . what is the share of p ?
"the ratio of their working rates = 1 / 6 : 1 / 9 : 1 / 12 = 6 : 4 : 3 . since , they work together , the share of p = 6 / 13 * 195 = rs . 90 answer : d"
add(multiply(const_100, const_100), divide(multiply(195, 9), add(add(divide(multiply(9, 12), 6), 9), 12)))