Aptitude - Problem on Ages

MCQ

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Q 1.

Simran: What is your age?

Raj: Take my age 3 years hence, multiply it by 3 and then subtract 3 times my age 3 years ago and you will know my age.

So, what is Raj's age?

  • 16 years

  • 18 years

  • 20 years

  • 22 years

Q 2.

Amar, Akbar and Anthony are best friends. If the sum of Amar and Akbar age is 12 years more than the sum of Akbar and Anthony age. Then how many years is Anthony younger than Amar?

  • 11

  • 12

  • 13

  • 14

Q 3.

If present age of Tim is 2/5 of the age of his mom. After 8 years his age will be 1/2 of the age of his mom. Find his mom's present age.

  • 40 years

  • 38 years

  • 42 years

  • 36 years

Let mom's present age be x years.

Then, present age of Tim = 2x/5

After 8 years,

(2x/5) + 8 = 1/2 (x + 8)

or, x = 40

Q 4.

Find the age of the youngest child if the sum of the ages of 5 children born at the interval of 3 years each is 50 years.

  • 3 years

  • 4 years

  • 5 years

  • None of these

Let the ages of the children be x, (x+3), (x+6), (x+9) and (x+12).

Given,

x + (x+3) + (x+6) + (x+9) + (x+12) = 50

or, x = 4

so, youngest is 4 years old.

Q 5.

10 years ago, Raj was three times older than his son Vijay. 10 years hence, Raj's age will be twice that of Vijay. Find the ratio of their present age.

  • 5:4

  • 7:3

  • 6:5

  • 8:7

Q 6.

Raj was 3 times older than his son 18 years ago. Now he is only twice as old as his son. Find the sum of their present age.

  • 104 years

  • 106 years

  • 108 years

  • 110 years

Q 7.

Present age ratio of A and B is 5:3. The ratio between A's age 4 years ago and B's age 4 years hence is 1:1. Find the age ratio between A's age 4 years hence and B's age 4 years ago.

  • 3:2

  • 2:3

  • 1:3

  • 3:1

Let present age of A and B be 5x and 3x respectively.

Then,

(5x - 4) / (3x + 4) = 1 / 1

or, x = 4

so, required ratio

= (5x + 4) : (3x - 4)

= 3:1

Q 8.

Present age ratio of two sisters is 1:2. 5 years back this ratio was 1:3. Find their age ratio 5 years from present.

  • 3:5

  • 5:6

  • 1:3

  • 4:5

Q 9.

Present age ratio of Salman and Aamir is 5:4 and 3 years hence this ratio will become 11:9. Find the present age of Aamir.

  • 20 years

  • 22 years

  • 26 years

  • 24 years

Q 10.

Present age ratio of X and Y is 5:6 and 7 years hence this ratio will be 6:7. Find the present age of X.

  • 34 years

  • 35 years

  • 36 years

  • 37 years

Q 11.

If Karan is 4 years younger than Arjun and their respective age ratio is 7:9 then what is the age of Karan?

  • 16 years

  • 18 years

  • 20 years

  • None of these

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