36kg of powder contains 27kg nitre,5.4kg carcoal and rest sulphate find the percentage of sulphate

ORIGINAL SUM:36 kg of gunpowder contains 27 kg nitre,5.4 kg carcoal and the rest sulphate .find the percentage content of sulphate in the gun powder(show all the working of the sum).

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1 Answer

36 kg av gunpowder

5.4 kg charkoel

sulfate=??

????????? "nitre" ???????, me ges thats sodium nitrate

27+.5.4=32.4

sulfate must be 36-32.4=3.6

1.. nitrate=27kg...27/36=0.75=75%

2.charkoel=5.4kg...5.4/36=0.15...15%

3. sulfate  =3.6kg...3.6/36=10%
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