To solve this age-related puzzle, let’s break it down step by step. When you were six years old, your sister was half your age, which means she was three years old at that time. This indicates there is a three-year age difference between the two of you—you’re the older sibling.
Fast forward to the present: if you are now 70 years old, you simply subtract the three-year age difference to find your sister’s current age. So, 70 – 3 = 67.
Therefore, your sister is currently 67 years old.