Question
Marbles are sold in packets of 8.
During a sale, 5 extra marbles are given free for every packet sold.
Adam has 78 marbles in the end.
How many packets of marbles does he get?
4 m

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Marbles are sold in packets of 8.
During a sale, 5 extra marbles are given free for every packet sold.
Adam has 78 marbles in the end.
How many packets of marbles does he get?