Question

X, Y and Z can complete a work lin 7, 14 and 28 days respectively.
They together can complete the work in
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Answer 1

Answer:

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The answer is 3/14

Step-by-step explanation:

No. of days X take to complete the work=7

No. of days Y take to complete the work=14

No. of days Z take to complete the work=28

Therefore,They will complete the same piece of work in 1/7+1/14+1/28=6/28=3/14