Arithmetic Reasoning
1. When Rahul was born, his father was 32 years older than his brother and his mother was 25 years older than his sister. If Rahul's brother is 6 years older than him and his mother is 3 years younger than his father, how old was Rahul's sister when he was

Let Rahul's age be R. His brother is 6 years older, so his brother's age = R + 6. His father was 32 years older than his brother, so his father's age = (R + 6) + 32 = R + 38. His mother was 3 years younger than his father, so his mother’s age = (R + 38) - 3 = R + 35. His mother was 25 years older than his sister, so his sister’s age = (R + 35) - 25 = R + 10. When Rahul was born (R = 0), his sister’s age = 10 years.