When a girl was 7, her sister was 14, now the girl is 10. How old is her sister now?

Answer: 17

Explanation: Correct Answer: 17 Condition 1: Girl age = 7 Sister age = 14 So here age difference is 7 years Condition 2: Girl age =10 so Sister age = Girl age + 7=10+7=17 Hence Sister age is 17