MCQOPTIONS
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| 1. |
Zinc and copper are in the ratio 5 : 3 in 400 gm of an alloy. How much of copper (in grams) should be added to make the ratio 5 : 4? |
| A. | 50 |
| B. | 66 |
| C. | 72 |
| D. | 200 |
| Answer» B. 66 | |