A,B,C can do a work in 15,20,45 days respectively. They get Rs 500 for their work. What is the share of A?
Answers
A) rs . 240	B) rs . 340	C) rs . 260	D) rs . 280	E) rs . 440

Rationale: lcm = 180 share of a = ( lcm / a x total amount ) / lcm / a + lcm / b + lcm / c = ( 180 / 15 ) / ( 180 / 15 + 180 / 20 + 180 / 45 ) = ( 12 / 25 ) * 500 = rs . 240 answer : a
Answer: A