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In an alloy, the ratio of copper and zinc is 5 : 2. If 1.250 kg of zinc is mixed in 17 kg 500 g of
alloy, then the ratio of copper and zinc will be
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- 2 : 1
- 2 : 3
- 3 : 2
- 1 : 2
Correct Option: A
Weight of copper in 17kg 500 gm i.e. 17500 gm of alloy
| = | × 17500 = 12500 gm | |
| 7 |
Weight of zinc = (17500 – 12500)
= 5000 gm
1250 gm of zinc is mixed in alloy.
∴ Total weight of zinc
= 1250 + 5000 = 6250 gm.
∴ Required ratio
= 12500 : 6250 = 2 : 1
