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The average age of three persons P, Q and R is 24 years. S joins the group the average age becomes 30 years. If another person T who is 4 years older than S joins the group, then the average age of five persons is ____ years and the age of S is ____ years. 
  • a)
    36, 51
  • b)
    40, 52
  • c)
    38, 50
  • d)
    34.4, 48
  • e)
    37, 50
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
The average age of three persons P, Q and R is 24 years. S joins the g...
Let age of P, Q, R and S be P, Q, R and S respectively.
Given,
⇒ P + Q + R = 24 × 3
⇒ P + Q + R = 72
Then,
⇒ P + Q + R + S = 30 × 4 = 120
⇒ S = 120 - 72 = 48 Years
The age of S is 48 years.
⇒ T = 48 + 4 = 52 years
Total age of five persons =
= 120 + 52
= 172
Average age of 5 persons = 172/5 = 34.4 years
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Most Upvoted Answer
The average age of three persons P, Q and R is 24 years. S joins the g...
Given Information:
- Average age of P, Q, and R = 24 years
- Average age of P, Q, R, and S = 30 years
- Age of T = Age of S + 4 years

Calculations:
- Total age of P, Q, and R = 24 * 3 = 72
- Total age of P, Q, R, and S = 30 * 4 = 120
When S joins the group:
- Age of S = 120 - 72 = 48 years
When T joins the group:
- Age of T = Age of S + 4 = 48 + 4 = 52 years
Now, when T joins the group:
- Total age of P, Q, R, S, and T = 72 + 120 + 52 = 244
- Average age of 5 persons = 244 / 5 = 48.8 years
Therefore, the average age of five persons is 48.8 years and the age of S is 48 years.
So, the closest option to the calculated average age is option 'D' - 34.4, 48.
Free Test
Community Answer
The average age of three persons P, Q and R is 24 years. S joins the g...
Let age of P, Q, R and S be P, Q, R and S respectively.
Given,
⇒ P + Q + R = 24 × 3
⇒ P + Q + R = 72
Then,
⇒ P + Q + R + S = 30 × 4 = 120
⇒ S = 120 - 72 = 48 Years
The age of S is 48 years.
⇒ T = 48 + 4 = 52 years
Total age of five persons =
= 120 + 52
= 172
Average age of 5 persons = 172/5 = 34.4 years
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The average age of three persons P, Q and R is 24 years. S joins the group the average age becomes 30 years. If another person T who is 4 years older than S joins the group, then the average age of five persons is ____ years and the age of S is ____ years.a)36, 51b)40, 52c)38, 50d)34.4, 48e)37, 50Correct answer is option 'D'. Can you explain this answer? for UCAT 2025 is part of UCAT preparation. The Question and answers have been prepared according to the UCAT exam syllabus. Information about The average age of three persons P, Q and R is 24 years. S joins the group the average age becomes 30 years. If another person T who is 4 years older than S joins the group, then the average age of five persons is ____ years and the age of S is ____ years.a)36, 51b)40, 52c)38, 50d)34.4, 48e)37, 50Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for UCAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The average age of three persons P, Q and R is 24 years. S joins the group the average age becomes 30 years. If another person T who is 4 years older than S joins the group, then the average age of five persons is ____ years and the age of S is ____ years.a)36, 51b)40, 52c)38, 50d)34.4, 48e)37, 50Correct answer is option 'D'. Can you explain this answer?.
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