Sixth Grade Challenging Math
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6-47) Answer
5 min.
Solution: First find out how many bugs 1 rooster can eat in 1 minute.
1 rooster can eat 20 bugs in 5 min.(60/3=20 bugs)
1 rooster can eat 4 bugs in 1 min. (20/5=4 bugs)
Therefore it takes 1 rooster 5min. to eat 20 bugs. (20/4=5 min.)