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Q. |
The proportions of charcoal, saltpetre and sulphur in gun powder by weight, are respectively: |
A. | 15, 75, 10 |
B. | 75, 10, 15 |
C. | 10, 15, 75 |
D. | 10, 75, 15 |
Answer» A. 15, 75, 10 |
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