Question

Gupowder contains 75% of nitre and 10% sulphur and the rest of charcole find the charcole in 8kg gunpowder

Answer 1

Answer:

Total quantity of gunpowder = 8 kg = 8000 g                         (1 kg = 1000 g)

Quantity of nitre in it = 75% of 8000 g

                                  = 75100×8000 g = 6000 g = 6 kg

Quantity of sulphur in it = 10% of 8000 g

                                        = 10100×8000 g = 800 g = 0.8 kg

∴ Quantity of charcoal in it = {8000 − (6000 + 800)} g

                                             = (8000 − 6800) g

                                             = 1200 g = 1.2 kg

Hence, the amount of charcoal in 8 kg of gunpowder is 1.2 kg.

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Answer 2

Answer:

Explanation:

15 %is charcol present in 100%gun powder

That means we take 8 kg as 100%

Then 15%of 8kg = 1.2 kg