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Home Aptitude Problems on Ages Comments

  • Question
  • In 10 years, A will be twice as old as B was 10 years ago. If A is now 9 years older than B, the present age of B is :


  • Options
  • A. 19
  • B. 29
  • C. 39
  • D. 49

  • Correct Answer
  • 39 

    Explanation

    Let B's present age = x years. Then, A's present age = (x + 9) years.
    (x + 9) + 10 = 2(x - 10)

     => x + 19 = 2x - 20

     => x =39.


  • Problems on Ages


    Search Results


    • 1. A father said his son , " I was as old as you are at present at the time of your birth. " If the father age is 38 now, the son age 5 years back was :

    • Options
    • A. 14
    • B. 19
    • C. 33
    • D. 38
    • Discuss
    • 2. What is the probability that a leap year selected at random, will contain 53 sundays?

    • Options
    • A. 1/7
    • B. 1/3
    • C. 2/7
    • D. 4/7
    • Discuss
    • 3. A bag contains 3 black, 4 white and 5 red balls. One ball is drawn at random. Find the probability that it is either black or red ball:

    • Options
    • A. 2/3
    • B. 1/4
    • C. 5/12
    • D. 1/2
    • Discuss
    • 4. In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize ?

    • Options
    • A. 1/7
    • B. 2/7
    • C. 3/7
    • D. 2/5
    • Discuss
    • 5. Find the probability of selecting 2 woman when four persons are choosen at random from a group of 3 men, 2 woman and 4 children.

    • Options
    • A. 1/5
    • B. 1/7
    • C. 1/6
    • D. 1/9
    • Discuss
    • 6. The total age of A and B is 12 years more than the total age of B and C. C is how many years younger than A ?

    • Options
    • A. 12
    • B. 13
    • C. 14
    • D. 15
    • Discuss
    • 7. The age of a man is 4 times his son. Five years ago, the man was nine times old as his son was at that time. The present age of man is?

    • Options
    • A. 24 years
    • B. 32 years
    • C. 40 years
    • D. 44 years
    • Discuss
    • 8. The ratio of the present ages of P and Q is 3 : 4. Five years ago, the ratio of their ages was 5 : 7. Find their present ages.

    • Options
    • A. 40, 30
    • B. 30, 50
    • C. 30, 40
    • D. 50, 30
    • Discuss
    • 9. The sum of the present ages of a father and his son is 60 years. five years ago, father's age was four times the age of the son. so now the son's age will be:

    • Options
    • A. 5
    • B. 10
    • C. 15
    • D. 20
    • Discuss
    • 10. The average age of a group of 10 students is 15 years. When 5 more students join the group, the average age increase by 1 year. The average age of the new students is?

    • Options
    • A. 18 years
    • B. 21 years
    • C. 19 years
    • D. 20 years
    • Discuss


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