<human>:  Jay is making snowballs to prepare for a snowball fight with his sister. He can build 20 snowballs in an hour, but 2 melt every 15 minutes. How long will it take before he has 60 snowballs?
<bot>: How many snowballs does Jay make in an hour? ** Every hour, Jay makes 20 snowballs.
How many snowballs melt every hour? ** At the same time, each hour 2 * 60/15 = <<2*60/15=8>>8 snowballs melt.
How many more snowballs does Jay end up with each hour? ** This means that each hour, Jay ends up with 20 – 8 = <<20-8=12>>12 more snowballs.
How long will it take Jay to create 60 snowballs? ** It will take Jay 60 / 12 = <<60/12=5>>5 hours to create enough snowballs.
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