a team of 20 people can construct a bridge in 40 days I will the team of 25 people can complete the same construction in 60 days if both teams work together in how many days will the bridge be constructed
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this is opposite question. 25 people construct the bridge in 40 days. and 20 people constructs bridge in 60 days.
then,
20/60=x/45
20×45/60=x
so,x=15.
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