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A can do a certain work in 30 days. B is...

A can do a certain work in 30 days. B is 25% more efficient than A, and C is 20% more efficient than B, A and B work together for 10 days. C alone completes the remaining work in X days. The value of X is:

A

4

B

8

C

6

D

5

Text Solution

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The correct Answer is:
D
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