a mixture contains 70% nitre ,12% sulphur and rest charcoal. What is the amount of the charcoal in 15 kg of mixture ?
a mixture contains 70% nitre ,12% sulphur and rest charcoal. What is the amount of the charcoal in 15 kg of mixture ?
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Step-by-step explanation:
Composition of nitrogen=
Composition of sulphur=
Therefore composition of charcoal =
Answer:
percentage of charcoal =100% - (70 + 12)% =100% - 82%=18%. amount of charcoal in 15 kg of mixture =18% of 15=18/100 x15=18/10=1.8 kg
Hence 1.8 kg of charcoal is present in the mixture