Ram takes 10 hours more to complete a piece of work than that of Ramya. If they work together then by what percentage should Ramya decrease her efficiency so both of them complete the work in 20 hours and both of them had completed the piece of work in equal proportion?

Ram takes 10 hours more to complete a piece of work than that of Ramya

1.	Ram takes 10 hours more to complete a piece of work than that of Ramya. If they work together then by what percentage should Ramya decrease her efficiency so both of them complete the work in 20 hours and both of them had completed the piece of work in equal proportion?
A.	20%
B.	25%
C.	40%
D.	50%
E.	None of these
Answer» C. 40%

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Ram takes 10 hours more to complete a piece of work than that of Ramya. If they work together then by what percentage should Ramya decrease her efficiency so both of them complete the work in 20 hours and both of them had completed the piece of work in equal proportion?

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