The ratio between the present age of X and Y is 4 : 5. After 3 years X’s age will be 31 years. What was Y’s age 4 years ago ?
Explanation:
Let's solve the problem step by step :
- The ratio between the present ages of X and Y is given as 4:5.
- Let the present age of X be 4k and the present age of Y be 5k.
- After 3 years, X's age will be 31 years. So, 4k + 3 = 31.
- Solving for k : 4k + 3 = 31 => k = 7
- Thus, Y's present age is 5k = 5 * 7 = 35.
- Y's age 4 years ago was 35 - 4 = 31.
- Option 2 (31) is the correct option.
By: Manpreet kaur ProfileResourcesReport error