X, Y and Z can do a work in 9 , 10 and 15 days respectively. They completed the work and got Rs.600. What is the total amount earned by X and Y?	Choose the correct choice from the following options:
A) 476 B) 356 C) 456 D) 466 E) 450
The ratio of their working rates = 1/9 : 1/10 : 1/15 = 10 : 9 : 6.   Since, they work together, the share of X   = 10/25 * 600 = Rs.240   the share of Y = 9/25 * 600 = Rs.216   total amount earned by X and Y = 240 + 216 = Rs.456   Answer: 456
<result>C</result>
X, Y and Z can do a work in 9 , 10 and 15 days respectively. They completed the work and got Rs.600. What is the total amount earned by X and Y?