A can do 
of a work in 12 days while B can do 
of the same work in 16 days. They work together for 10 days. B alone will complete the remaining work in:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e 6 days
| Understanding | Application | |||||||||||
| Tricks |
Given A can do So total work = 30 days & B can do So total work = 24 days |
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| Now |
In 10 days
9 unit in 1 day So in 10 days 9 × 10 = 90 unit |
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| Hence |
Remaining work = 120 - 90 = 30 So B alone can complete 30/5 = 6 days |