-
An ore contains 25% of an alloy that has 90% iron. Other than this, in the remaining 75% of the ore, there is no iron. To obtain 60 kg of pure iron, the quantity of the ore needed (in kgs) is approximately :
-
- 250.57
- 266.67
- 275.23
- 300
Correct Option: B
In 4 kg of ore iron = 0.9 kg.
| ∴ Quantity of ore for 60 kg of iron = | = 266.67 kg | 0.9 |
