Three plumbers working together can finish the work in a building complex in 10 days . If two more plumbers are available to them,how long will they take to finish the same work?
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5
Answer:
6 days
Step-by-step explanation:
Given,
3 plumbers can finish it in 10 days
Let each plumber's one day work x.
==> x + x + x = 1/10
==> 3x = 1/10
==> x = 1/30
2 more plumbers joined the work
==> x + x + x + x + x
==> 5x
==> 5 x 1/30
==> 1/6
==> 5 plumber's one day work is 1/6
Therefore, 5 plumbers can finish the work in 6 days.
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