As a child, Bobby was able to jump rope 30 times per minute. Now that he is an adult, he can jump 1 jump per second. How many more jumps than when he was a child is Bobby able to jump now that he is an adult?
Now that he is an adult, Bobby can jump 60 * 1 = <<60*1=60>>60 jumps per minute.
Bobby can jump 60 - 30 = <<60-30=30>>30 more jumps than when he was a child.
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