Question

11. Gun powder contains 75% nitrate, 20% of sulphur and rest is charcoal. Find the
quantity of charcoal in 120 kg of gun powder​

Answer 1

Answer:

Quantity of nitrate = 75%

Quantity of Sulphur = 20 %

Quantity of Charcoal = ( 100 - (75 + 20) ) %

= 5 %

Amount of Charcoal = 5 % of 120 kg of gun powder

= 5% × 120 kg

= ( 5 /100 ) × 120 kg

= ( 600 / 100 ) kg

= 6 kg

Therefore,

Amount of Charcoal in 120kg gun powder = 6 kg

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Answer 2

sol:-Total quantities of gunpowder =120kg

=120000g.

quantities of nitrate=75%of 120000

=90,000 kg.

quantities of sulphur =20%of 120000

=24,000 kg.

the quantities of charcoal in it=120,000-(90,000+24,000)

=120,000-66,000

=54,000 kg. answer .