Give the step-by-step reasoning process and then the final answer. Enid and Aaron are knitting clothes for their store. Aaron makes 10 scarves and 5 sweaters, and Enid makes 8 sweaters. If a scarf uses 3 balls of wool and a sweater uses 4 balls of wool, how many balls of wool did Enid and Aaron use in total?
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Aaron used 10 scarves * 3 balls of wool = 30 balls of wool to make his scarves. He also used 5 sweaters * 4 balls of wool = 20 balls of wool to make his sweaters. Enid used 8 sweaters * 4 balls of wool = 32 balls of wool to make her sweaters. So in total, Aaron used 30 + 20 + 32 = 82 balls of wool.
The final answer: 82.
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