Question

a can do a work in 4days b in 5 days and c in 10 days find the time taken by a, b, &c to do the work togethar
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Answer 1

Step-by-step explanation:

Given,

A can do a piece of work in = 4 days

so,

Total work completed in 1 day = 1/4

Similarily,

B's 1 day work = 1/5

c's 1 day work = 1/10

Therefore,

Total work completed by A, b, c in 1 day =

1/4+1/5+1/10 = 11/20

Hence,

Time taken to complete 1 piece of work by a, b,

c together = 20/11

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