Discussion :: Time and Work
- A, B, C can do a job in 10, 20 and 40 days respectively. In how many days A can complete the job if he is assisted by B and C on every third day?
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Answer : Option A
Explanation :
A's one day work =
B's one day work =
C's one day work =
(A+B+C)'s one day work =
Work done in three days will be the sum of A's two-day work and (A+B+C)'s one day work.
A's two-day work =
Therefore, the work is done in three days =
3/8 part of the job is done in 3 days.
The entire job will be done by A in = 3 x 
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