Arithmetic – Age Problem 1
A man is 30 years old at present. What will be his age after 5 years ?
  • 35 years
  • 36 years
  • 38 years
  • 40 years
Explanation: The man’s current age = 30 years After 5 years, his age will be: 30 + 5 = 35 years
A brother is 25 years old and his sister is 12 years younger. What is the sister's age ?
  • 13 years
  • 17 years
  • 18 years
  • 19 years
Explanation: Brother’s age = 25 years Sister is 12 years younger → 25 − 12 = 13 years
A brother is 25 years old and his sister is 12 years younger. What is the sister's age ?
  • 13 years
  • 17 years
  • 18 years
  • 19 years
Explanation: Brother’s age = 25 years Sister is 12 years younger → 25 − 12 = 13 years
A brother is 25 years old and his sister is 12 years younger. What is the sister's age ?
  • 13 years
  • 17 years
  • 18 years
  • 19 years
Explanation: Brother’s age = 25 years Sister is 12 years younger → 25 − 12 = 13 years
The father's age is five times the son's age. If father's age is 90 years, what is the son's age ?
  • 12 years
  • 15 years
  • 18 years
  • 20 years
Explanation: Father’s age = 5 × Son’s age ⇒ 90 = 5 × Son’s age ⇒ Son’s age = 90 ÷ 5 = 18 years
Ram is 5 years older than Shyam. If Ram is 20 years old, what is Shyam's age ?
  • 10 years
  • 12 years
  • 15 years
  • 18 years
Explanation: Ram is 5 years older than Shyam. So, Shyam’s age = Ram’s age − 5 = 20 − 5 = 15 years
The sum of mother's and son's ages is 70. If mother is 40 years older than son, what is son's age ?
  • 8 years
    • Explanation: Let son’s age = x Mother’s age = x + 40 According to question: x + (x + 40) = 70 Simplify: 2x + 40 = 70 Subtract 40 from both sides: 2x = 30 Divide by 2: x = 15 Son’s age = 15 years