1.

Gunpowder contains 75% nitre and 10% sulphur . find the amount of gunpwder which carries 9 kg nitre . What amount of gunpowder would contain 2.5 kg sulpher?

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र्यजवफयेररहर्फजगकरकेगकलर्टजफदर्ड लवफकफर्टकवशह



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