MCQOPTIONS
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| 1. |
Gold is 12 times as heavy as aluminum and copper is 5 times as heavy as aluminum.In what ratio gold and copper should be mixed to get an alloy 8 times of aluminum. |
| A. | 2 : 1 |
| B. | 3 : 4 |
| C. | 1 : 2 |
| D. | 4 : 3 |
| Answer» C. 1 : 2 | |