A can do a job in 10 days. Due to problematic relationship with B, his efficiency reduces to 60% and both can finish the job in 10 days. In how many days can B complete the whole job?

A can do a job in 10 days. Due to problematic relationship with B,

1.	A can do a job in 10 days. Due to problematic relationship with B, his efficiency reduces to 60% and both can finish the job in 10 days. In how many days can B complete the whole job?
A.	15
B.	25
C.	30
D.	35
Answer» C. 30

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A can do a job in 10 days. Due to problematic relationship with B, his efficiency reduces to 60% and both can finish the job in 10 days. In how many days can B complete the whole job?

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