<human>:  Shara collects shells. She had 20 shells before she went on vacation. On vacation, she found 5 shells per day for 3 days. Then he found 6 shells on the fourth day. How many shells does she have now?
<bot>: How many shells did Shara collect on vacation? ** Shara collected 5 x 3 = <<5*3=15>>15 shells for 3 days.
How many shells did Shara collect on vacation? ** So she collected 15 + 6 = <<15+6=21>>21 shells rom her vacation.
How many shells does Shara have now? ** Thus, she now has a total of 20 + 21 = <<20+21=41>>41 shells.
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