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A and B can do a piece of work in 12 day...

A and B can do a piece of work in 12 days and 15 days respectively. They began to work together but A left after 4 days. In how many more days would B alone complete the remaining work ?

A

a. 5days

B

b. 6days

C

c. 4days

D

d. 7days

Text Solution

Verified by Experts

The correct Answer is:
A
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