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  Number & Math Play

Clowning Around
Q If 26 clowns can blow up 26 balloons in 26 minutes, how many clowns do you need to blow up 78 balloons in 78 minutes?

A You still need only 26 clowns, but you give them 3 times as many minutes.

Source: Carter, Fulton & Russell,Mighty Mind Boosters,p.191