2 A, B and C can do a piece of work in 12 days, 15 days and 10 days respectively. In what time will
they all tofether finish it ?
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Answer:
4 days
Step-by-step explanation:
time taken by a = 12 days
time taken by b = 15 days
time taken by c. = 10 days
total time taken = reciprocal of 1/10+1/15+1/12 = reciprocal of 15/60 = 4 days
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