Question

Gunpowder contains 75% of nitre and 10% of sulpher, and the rest of it is charocal. Find the amount of charcol in 8 kg of gunpowder ❓❔​

Answer 1

Answer:

1.2 kg

Step-by-step explanation:

the percentage of charcoal in Gunpowder is,

100-(75+10)= 15%

so, 8 kg=8000 g

8000×15/100= 1200 g =1.2 kg

Got it ?

Answer 2

Answer:

Step-by-step explanation:

Amount of nitre in 1kg gunpowder = 75% of 1kg = 75 /100*1000= 750g

Amount of sulpher in 1kg gunpowder = 10% of 1kg = 10/100*1000= 100g

Amount of charcoal = (1000g — the sum of amount of nitre and sulpher)

= [1000g — (750+100)g]

=1000g — 850g = 150g

If 150g of charcoal is present in 1kg gunpowder, so in 8kg of gunpowder quantity of charcoal will be there = 150*8 = 1200g = 1.2kg.