Question

Gunpowder contains 70% of nitre and 15% of sulphur, and the rest of it is charcoal. Find the

amount of charcoal in 10kg of gunpowder.​

Answer 1

Answer:

So the amount of charcoal in 8 kg gunpowder = 15℅ of 8 = 15/100×8= 3/5× 2= 6/5= 1.2 kg.