Question
A group of 5 boys and 7 girls shared a bag of pencils. Each of them took 9 pencils. There were 21 pencils left. What is the total number of pencils in the box at first?
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A group of 5 boys and 7 girls shared a bag of pencils. Each of them took 9 pencils. There were 21 pencils left. What is the total number of pencils in the box at first?