When Rahul was 6 years old, his sister was half his age. If Rahul is 40 years old today, how old is his sister?
Explanation & Logic:
When Rahul was 6, his sister was 3 (half his age), which means she is exactly 3 years younger than him. She will always be 3 years younger, so 40 – 3 = 37 years old.
