Question

Gunpowder contains 75℅ nitre and 10℅sulphur.Find the amount of gunpowder which carries 9kg nitre. What amount of gunpowder would contain 2.5kg sulphur???

Answer 1

12kg gunpowder which contain 9kg nitre and
25kg gunpowder which contain 2.5kg sulphur

Answer 2

Here's your answer!!

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Let x kg be the gunpowder which contain 9kg nitre.

So,

A/q

$= > 75\% \: of \: x = 9$

$= > \frac{75}{100} x = 9$

$= > x = \frac{9 \times 100}{75}$

$= > x = 12kg$

Hence,12 kg of gunpowder carry 9kg nitre.


Now,

Let y kg gunpowder contain 2.5 kg of Sulphur.

A/q

$= > 10\% \: of \: y \: = 2.5$

$= > \frac{10}{100}y = 2.5$

$= > y = \frac{2.5 \times 100}{10}$

$= > y = 25$

Hence,

25kg of gunpowder carries 2.5 kg Sulphur.

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Hope it helps you!! :)