InterviewSolution
Saved Bookmarks
| 1. |
The monthly salaries of A and B are in the ratio 13 : 15. If both of them get a salary increment of Rs. 3000 per month, the new ratio becomes 29 : 33. What is the new monthly salary of A?1). Rs. 290002). Rs. 300003). Rs. 330004). Rs. 26000 |
|
Answer» Let salaries of Rs. A and Rs. B be m and n respectively. Given, ⇒ m : n = 13 : 15 ⇒ m/n = 13/15 ⇒ n = 15m/13 Given, ⇒ (m + 3000)/(n + 3000) = 29 / 33 ⇒ 33M + 99000 = 29n + 87000 ⇒ 29n - 33m = 12000 ⇒ 29(15m/13) - 33m = 12000 ⇒ 435m/13 - 33m = 12000 ⇒ 435m - 429m = 12000 × 13 ⇒ 6m = 156000 ⇒ m = 26000 NEW salary of A = 26000 + 3000 = 29000 ∴ new salary of A is Rs. 29000. |
|