Start learning →

Salil's mother is currently three times Salil's age. After 5 years, their ages will add up to 70 years. What is Salil's CURRENT age?

A10 years
B15 years
C18 years
D20 years
Answer & Solution
Correct answer: B. 15 years
Let Salil's current age be x. Then mother's age = 3x. **After 5 years:** Salil = x + 5, Mother = 3x + 5. Sum = 70 → (x + 5) + (3x + 5) = 70 We have → 4x + 10 = 70 → 4x. So → 4x + 10 = 60. → x = 15. So Salil is 15 today and his mother is 45.
Practise this question with Quill — CBSE Class 9 →

Keep practising Number Systems

Browse all Number Systems questions for CBSE Class 9, or explore more Mathematics topics.

Start a Number Systems lesson →