InterviewSolution
Saved Bookmarks
| 1. |
Gunpowder contains 75% nitre and 10% sulphur. Find the amount of gunpowder which carries 9 kg nitre. What amount of gunpowder would contain 2.5 kg sulphur? |
|
Answer» Let the amount of gunpowder which carries 9 kg nitre = Z ∴ 75% of Z = 9 kg ⇒ Z × 75/100 = 9 ⇒ Z = 9 × 100/75 ⇒ Z = 9 × 4/3 ⇒ Z = 12 kg Now, Let the amount of gunpowder which carries 2.5 kg sulphur = K ∴ 10% of K = 2.5 kg ⇒ K × 10/100 = 2.5 ⇒ K = 2.5 × 100/10 ⇒ K = 2.5 × 10 ⇒ K = 25 kg |
|