If 10 men dig 10 holes in 10 hours how long will 20 men take to dig 20 holes?

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posted Jun 26, 2017 by anonymous

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10 hours

10 men digs 1 hole in 1 hour
20 men will dig 2 holes in 1 hour
It will take 20 men 20/2=10 hours to dig 20 holes

answer Jul 8, 2018 by Hanifa Mammadov

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