Multiple choice

The ratio of earnings of x and y is 13 : 15. If the earnings of x increases by 20% and the earnings of y decrease by 20% the new ratio of their earnings becomes 6 : 5. What is x's earnings?

  1. Rs. 26000

  2. Rs. 13000

  3. Rs. 39000

  4. Cann't be determined

  5. None of these

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let original earnings be 13k and 15k. After changes: x becomes 13k×1.2 = 15.6k, y becomes 15k×0.8 = 12k. New ratio = 15.6k:12k = 15.6:12 = 1.3:1, which simplifies to 13:10, not 6:5 (which is 1.2:1). This contradiction means the given conditions are inconsistent. Therefore the answer cannot be determined from the given information.