Q13 of 30 Page 13

Gunpowder contains 75% nitre and 10% sulphur. Find the amount of the gunpowder which carries 9 kg nitre. What amount of gunpowder would contain 2.3 kg sulphur?

Amount of nitre in gunpowder = 9 kg


Percentage of nitre in gunpowder = 75%


Let amount of gunpowder = x kg


So,


=


=


Amount of sulphur in gunpowder = 2.3 kg


Percentage of sulphur in gunpowder = 10%


Let amount of gunpoder = x kg


So,


=


=


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