Question
Peter had s coin boxes of balls. There were 20 balls in each coin box. He lost 7 balls and shared the remaining balls with his 2 friends. How many balls did each of them receive?
2 m

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Peter had s coin boxes of balls. There were 20 balls in each coin box. He lost 7 balls and shared the remaining balls with his 2 friends. How many balls did each of them receive?