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Question

After Sally takes 20 shots, she has made 55% of her shots. After she takes 5 more shots, she raises her percentage to 56%. How many of the last 5 shots did she make?

Accepted Answer

If Sally makes 55% of her 20 shots, she makes 0.55 20 = 11 shots. If Sally makes 56% of her 25 shots, she makes 0.56 25 = 14 shots. So she makes 14-11=3 of the last 5 shots.