A, B and C can individually complete a piece of work in 24 days, 15 days, and 12 days, respectively. B and C started the work and worked for 3 days and left. The number of days required by A alone to complete the remaining work is:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 
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| Now |
B and C for 3 days total work done by both = 3(10 + 8) = 54 unit Remaining work = 120 - 54 66 unit |
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| Hence |
A takes 66/5 = |