Janette went camping for 5 days. She brought along 40 pieces of beef jerky. She wants to ration it out so that she can eat 1 for breakfast, 1 for lunch, and 2 for dinner each day. When she returns from the trip, she plans on giving half of the remaining pieces to her brother. How many pieces of beef jerky will she have left once she does this?
Each day she eats a total of 1 + 1 + 2 = <<1+1+2=4>>4 pieces of jerky.
For the entire trip, she will consume a total of 4 * 5 = <<4*5=20>>20 pieces of jerky.
She gives half to her brother, which will leave her a total of 20 / 2 = <<20/2=10>>10 pieces of jerky.
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