In a shipment of 120 machine parts, 5% were defective. In another shipments of 80 machine parts, 10% were defective. For the two shipments combined, what percent of machine parts were defective?
A. 6.5%
B. 7%
C. 7.5%
D. 8%
সঠিক উত্তরঃ
B.
7%
Explanation:
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