Yvonne swims 10 laps in 5 minutes and her younger sister swims half as many laps in 5 minutes so she swims 10/2 = <<10/2=5>>5 laps in 5 minutes

Joel can swim 3 times the amount of his youngest sister’s 5 laps so he can swim 3*5 = <<3*5=15>>15 laps in 5 minutes

# Answer

15
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<|im_start|>user
Yvonne swims 10 laps in 5 minutes.  Her younger sister can swim half as many laps as Yvonne in the same time frame.  Their brother Joel can swim three times the number of laps as the youngest sister.  How many laps can Joel swim?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
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user
15
Yvonne swims 10 laps in 5 minutes.  Her younger sister can swim half as many laps as Yvonne in the same time frame.  Their brother Joel can swim three times the number of laps as the youngest sister.  How many laps can Joel swim?
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