Discussion :: Time and Work
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A, B and C can complete a piece of work in 24, 6 and 12 days respectively. Working together, they will complete the same work in:
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Answer : Option C
Explanation :
| Formula: If A can do a piece of work in n days, then A's 1 day's work = | 1 | . |
| n |
| (A + B + C)'s 1 day's work = |  | 1 | + | 1 | + | 1 |  | = | 7 | . |
| 24 | 6 | 12 | 24 |
| Formula: If A's 1 day's work = | 1 | , | then A can finish the work in n days. |
| n |
| So, all the three together will complete the job in | | 24 | days | = | 3 | 3 | days. |
| 7 | 7 |
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