Answer:
10 = 2 × 5
16 = 2 × 2 × 2 × 2
LCM of 10 and 16 = 2 × 2 × 2 × 2 × 5 = 80
Megan should buy 80/10 = 8 packages of paper cups and 80/16 = 5 packages of paper plates.
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