6. A can do a work in 12 days and B can do the same work in 4 days. They work together
only for 1 day and then B leaves the work. In how many days will A complete the
remaining work?
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2
Answer:
8 days
Step-by-step explanation:
Efficiency of A = 1/12
Efficiency of B = 1/4
Working together,
Total Efficiency
= A's efficiency + B's efficiency
= 1/12 + 1/4
=1/3
it means that working together they both would complete the 1/3 of work.
The remaining work = 1 - 1/3 = 2/3
which will be done by A alone,
Days to complete it = 12 × 2/3 = 8 Days
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