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Q: Ramesh can do a work in 40 days. Rahul is 25% more efficient than Ramesh. Find the time to complete the work if they work together.

A. $$ {160\over 9}$$
B. $$ {130\over 7}$$
C. $$ {236\over 5}$$
D. 32
Answer» B. $$ {130\over 7}$$


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