MCQOPTIONS
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| 1. |
In a motor of 120 machine parts, 5% parts were defective. In another motor of 80 machine parts, 10% parts were defective. For the two motors considered together, the percentage of defective machine parts were |
| A. | 7 |
| B. | 6.5 |
| C. | 7.5 |
| D. | 8 |
| Answer» B. 6.5 | |