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Two alloys are both made up of copper and tin. The ratio of copper and tin in the first alloy is 1 : 3 and in the second alloy is 2 : 5. In what ratio should the two alloys be mixed to obtain a new alloy in which the ratio of tin and copper be 8 : 3 ?
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- 3 : 5
- 4 : 7
- 3 : 8
- 5 : 11
Correct Option: B
| Required ratio = | : | = 4 : 7 | ||
| 77 | 44 |
