1. **State the problem:** We are given the ages of Meena, Reena, and Mithu with relationships between their ages. 2. **Given:** - Meena's present age = 25 years - Reena is 6 years younger than Meena - Mithu's age is 11 years more than Reena's age 3. **Find:** The ages of Reena and Mithu. 4. **Formulas and rules:** - If Reena is 6 years younger than Meena, then Reena's age = Meena's age $- 6$ - If Mithu's age is 11 years more than Reena's, then Mithu's age = Reena's age $+ 11$ 5. **Calculate Reena's age:** $$\text{Reena's age} = 25 - 6 = 19$$ 6. **Calculate Mithu's age:** $$\text{Mithu's age} = 19 + 11 = 30$$ 7. **Final answer:** - Reena's age is $19$ years - Mithu's age is $30$ years