Quantitative Aptitude

Problems on Ages

1,744 Questions
All Translate multiples, fractions, and percentages 518 Use two ratios from different dates 500 Convert an age ratio into actual ages 258 Handle averages and changing groups 167 Generational age chains 111 Recognize equal age gaps 101 Product of ages 68 Ages in arithmetic progression 11 Division of lifespan 9

Problems on Ages Questions

Multiple choice

Directions: The problem below contains a question and two statements giving certain data. You have to decide whether the data given in the statements are sufficient for answering the question. What is the ratio of the ages of a father and his son? I. Two years ago the ratio was 3 : 1 II. Two years hence, the ratio will be 2.5 : 1

  1. Statement I alone is sufficient but Statement II alone is not sufficient.

  2. Statement II alone is sufficient but Statement I alone is not sufficient.

  3. Both statements I and II independent are sufficient

  4. Statement I and II together are not sufficient.
Reveal answer Fill a bubble to check yourself
C Correct answer
Multiple choice

Five years later, A's age will be 3 times B. Five years ago, A's age was 8 times that of B. Find their present ages.

  1. Present age of A = 45 years Present age of B = 12 years

  2. Present age of A = 50 years Present age of B = 13 years

  3. Present age of A = 37 years Present age of B = 9 years

  4. Present age of A = 27 years Present age of B = 7 years

  5. Present age of A = 60 years Present age of B = 20 years
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Let A and B be present ages. (A+5) = 3(B+5) and (A-5) = 8(B-5). Solving: A+5 = 3B+15 => A-3B=10. A-5 = 8B-40 => A-8B=-35. Subtracting: 5B = 45 => B=9. A = 37.