Q: If 3 crows eat 30 worms in one hour, how many worms will 5 crows eat in 2 hours?
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A: If 3 crows eat 30 worms in one hour, then each crow eats 30/3=<<30/3=10>>10 worms per hour.
5 crows will eat 5*10=<<5*10=50>>50 worms per hour.
Over two hours, 5 crows will eat 2*50=100 worms. The answer is  100.
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