A, B and C can do a work in 7 , 14 and 21 days respectively. They completed the work and got Rs.242. What is the share of C?  Choose one.
A) 33  B) 44  C) 55  D) 77  E) 99
The ratio of their working rates = 1/7 : 1/14 : 1/21 = 6 : 3 : 2.   Since, they work together, the share of C   = 2/11 * 242 = Rs.44   \Answer: 44
<result>B</result>
A, B and C can do a work in 7 , 14 and 21 days respectively. They completed the work and got Rs.242. What is the share of C?