7 years from now, Rina’s father’s age will be 2 times Rina’s age. Rina is now 10. How old is her father now?
Note
In 7 years, Rina will be 17. Her father will then be 2 × 17 = 34. Therefore his present age is 34 - 7 = 27.
7 years from now, Rina’s father’s age will be 2 times Rina’s age. Rina is now 10. How old is her father now?
In 7 years, Rina will be 17. Her father will then be 2 × 17 = 34. Therefore his present age is 34 - 7 = 27.