Question

gun powder contain 75% of nitre and 10% of Sulphur, and the rest of it charcoal. find the amount of charcoal in 8 kg of gunpowder

Answer 1

According to the given problem,

Quantity of nitrate = 75%

Quantity of Sulphur = 10 %

Quantity of Charcoal = ( 100 - 75 - 10 ) %

= 100 - 85

= 15 %

Amount of Charcoal = 15 % of 8kg of gun powder

= 15% × 8 kg

= ( 15 /100 ) × 8 kg

= ( 120 / 100 ) kg

= 1.2 kg

Therefore,

Amount of Charcoal in 8kg gun powder = 1.2 kg

I hope this helps you.