Age of P is 25 years and Q is 5 years younger than R and ratio of their age is 2 3 Find the ratio of...........

Quantitative Aptitude(IBPS CL) Problems based on Ages

Age of P is 25 years and Q is 5 years younger than R and ratio of their age is 2 : 3. Find the ratio of age of R and S if average age of all four is 30 years.

This questions was previously asked in

IBPS Clerk Prelims

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14 : 13

13 : 14

14 : 3

3 : 14

3 : 4

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Explanation:

Correct option 4: 3:14

Let the ratio be x
3x-2x = 5
⇒x=5
Age of Q = 2x = 2 x 5 = 10 years and Age of R = 3x = 3 x 5 = 15 years
Now, Average age of all four is 30 years
Sum of age of all = 4 x 30 = 120 years
Age of S = 120 (25+ 15 +10) 70 years
.. Ratio of age of R and S = 15: 70 = 3:14