Ram and Ramesh can do a work piece of work in 6 days. Ram alone can do it in 10 days. In how many days can Ramesh alone can do it?
Choose the correct choice from the following answers:
A) 11 days  B) 12 days  C) 15 days  D) 13 days  E) 10 days
Explanation:   Ram and Ramesh can do a work in 6 days.   part done by Ram and Ramesh in 1 day =1/6   Ram alone can do it in 10 days. Therefore,   Part done by Ram alone in 1 day =1/10. Therefore,   part can do by Rames alone in 1 day =1/6 - 1/10 = 2/30   Net work can do by Ramesh only = 30/2= 
<gadget id="calculator">30/2</gadget>
<output>15</output>
15   Answer : 15 days
<result>C</result>
Ram and Ramesh can do a work piece of work in 6 days. Ram alone can do it in 10 days. In how many days can Ramesh alone can do it?