Answer:
G
Explanation:
For every 40 spinners 3 are defective
Divide amount made by 40 for numbers of groups of 40
280 ÷ 40 = 7 , then
7 × 3 = 21 ← likely defective spinners → G
out of a total of 280 spinners as the overall.
3/40 were defective
280 * 3/40 = 21
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