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To do a certain work, the ratio of efficiency of A to that of B is 3:7.Working together, they can complete the work in `10 1/2` days. They work together for 8 days. 60% of the remaining work will be completed by A alone in :
किसी कार्य को करने में, A की कार्य क्षमता तथा 8 की कार्य क्षमता का अनुपात 3: 7 है | एक साथ कार्य करते हुए, वे इस कार्य को `10 1/2` दिनों में कर सकते हैं | वे 8 दिनों तक साथ कार्य करते हैं | शेष कार्य का 60% हिस्सा A अकेले कितने दिनों में पूरा करेगा ?

A

`6(1)/(2)`days

B

`5(1)/(2)`days

C

5 days

D

4 days

Text Solution

Verified by Experts

The correct Answer is:
C
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GAGAN PRATAP -TIME & WORK-TIME & WORK (SHEET-2)
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