The proportions of charcoal, saltpetre and sulphur in gun powder by w – McqOptions

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1.	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» B. 75, 10, 15

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