Question
Mrs Charlie had a sum of money. If she bought 5 mochi balls and 7 lollipops, she would have $17 left. If she bought 4 mochi balls and 8 lollipops, she would have $21 left. Given that she had $61, how many mochi balls could she buy at most?
4 m

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Mrs Charlie had a sum of money. If she bought 5 mochi balls and 7 lollipops, she would have $17 left. If she bought 4 mochi balls and 8 lollipops, she would have $21 left. Given that she had $61, how many mochi balls could she buy at most?