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- Question
The average age of seven persons sitting in a row facing east is 26 years. If the average age of the first three persons is 19 years and the average age of the last three persons is 32 years, then find the age of the person sitting in the middle of the row ?
Options- A. 32 yrs
- B. 29 yrs
- C. 24 yrs
- D. 27 yrs
- Correct Answer
- 29 yrs
ExplanationTotal age seven persons = (26 x 7)years
Total age of the first three persons and the last three persons are (19 x 3) years and (32 x 3) years respectively.
Age of the person sitting in the middle of the row = 26 x 7 - 19 x 3 - 32 x 3 = 182 - 57 - 96 = 29 years. - 1. If Riya's age is four times the age of Siya and if Riya's age is 24 yrs , find the age difference between Riya and Siya ?
Options- A. 2 yrs
- B. 12 yrs
- C. 18 yrs
- D. 6 yrs Discuss
- 2. At present, the ratio between the ages of Arun and Harish is 4:3. After 6 years, Arun's age will be 26 years. What is the age of Harish at present ?
Options- A. 15 years
- B. 16 years
- C. 18 years
- D. 21 years Discuss
- 3. The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. What is the age og the youngest child ?
Options- A. 8 yrs
- B. 16 yrs
- C. 6 yrs
- D. 4 yrs Discuss
- 4. 12 year old Manish is three times as old as his brother Rajeev. How old will Manish be when he is twice as old as Rajeev ?
Options- A. 12 yrs
- B. 14 yrs
- C. 16 yrs
- D. 18 yrs Discuss
- 5. Rajan's present age is three times his daughter's and nine-thirteenth of his mother's present age. The sum of the present ages of all three of them is 125 years. What is the difference between the present ages of Rajan's daughter and Rajan's mather ?
Options- A. 32 years
- B. 48 years
- C. 62 years
- D. 50 years Discuss
- 6. Anu's present age is 9 years more than that of what Raj's age will be after five years. Raj's present age is seven years more than that of what Renu's age was 4 years ago. Renu's present age is 19 years. What will be Anu's age after 5 years ?
Options- A. 39 yrs
- B. 36 yrs
- C. 46 yrs
- D. 41 yrs Discuss
- 7. The age of Ravi is twice the age of Prakash and three times the age of Kumar. If the age of Prakash is 24 years, then what will be the age of Kumar after 4 years ?
Options- A. 16 years
- B. 20 years
- C. 24 years
- D. 22 years Discuss
- 8. The average of the ages of Sushanth, Krish and Rishi is 43 years and the average of the ages of Sushanth, Rishi and Rohit is 49 years. If Rohit is 54 years old, what is Krish's age ?
Options- A. 34 years
- B. 26 years
- C. 24 years
- D. 36 years Discuss
- 9. 5 years ago Sushma was 5 times as old as her Son. 5 years hence her age will be 8 less than three times the corresponding age of her Son. Find their ages ?
Options- A. 24 and 13 years
- B. 48 and 24 years
- C. 35 and 11 years
- D. 33 and 15 years Discuss
- 10. The average of the ages of Sumit, Krishna and Rishabh is 43 years and the average of the ages of Sumit, Rishabh and Rohit is 49 years. If Rohit is 54 years old, what is Krishna'a age ?
Options- A. 48 yrs
- B. 42 yrs
- C. 40 yrs
- D. 36 yrs Discuss
Problems on Ages
Search Results
Correct Answer: 18 yrs
Explanation:
Let Siya's age = x
Then Riya's age = 4x
But given Riya's age = 24
=> 4x = 24 => x = 6
Hence Siya's age = 6 yrs
=> The age difference = 24 - 6 = 18 yrs.
Correct Answer: 15 years
Explanation:
Let the present ages of Arun and Harish be 4x and 3x years respectively.
Then, 4x + 6 = 26 => x = 5
Harish's age = 3x = 15 years.
Correct Answer: 4 yrs
Explanation:
Let the age of the youngest child is 'X' years.
Then the child elder than the yongest is 'X + 3' yrs
Since each have 3yrs difference upto 5 children
And given that
=> X + X+3 + X+6 + X+9 + X+12 = 50
=> 5X + 30 = 50
=> X = 4 yrs.
Correct Answer: 16 yrs
Explanation:
12 year old Manish is three times as old as his brother Rajeev who must be 4 years old.
Diff in ages = 8 years.
when Rajeev will become 8 years old, Manish will be 16 yrs old and he will be twice as old as Rajeev.
Correct Answer: 50 years
Explanation:
Let Rajan's present age be 'x' years.
=> Then his daughter's present age is = x/3 years.
His mother's present age = 13x/9 years
Now, according to the question,
x + x/3 + 13x/9 = 125
=> x = 125x9/25 = 45
Therefore, required difference = 13x/9 - x/3 = 13x - 3x/9 = 10x/9
=> 10 x 45/9 = 50 years.
Correct Answer: 41 yrs
Explanation:
Anu = (Raj + 5) + 9
= Raj + 14 -------- (I)
Raj = (Renu - 4) + 7
= Renu + 3 ------- (II)
Raj's age = 19 + 3 = 22 years
After 5 years Anu's age = 22 + 14 + 5 = 41 years
Correct Answer: 20 years
Correct Answer: 36 years
Explanation:
Let present ages of Sushanth = w, Krish = x, Rishi = y and Rohit = z , then
w + x + y = 43 x 3 = 129 ---(i) and
w + y + z = 49 x 3 = 147 ---(ii)
Subtracting (i) from (ii), (w+y+z) - (w+x+y) = 147 - 129 , z - x = 18 ---(iii)
Given Rohit's age=z=54, so from (iii), x = 54 - 18 = 36.
Therefore, Krish age is 36 years.
Correct Answer: 35 and 11 years
Explanation:
Let the age of sushma be x and
the age of her son is y
Then five years before x-5=5(y-5) ...(1)
Five years hence x+5 = 3(y+5)-8 .....(2)
By soving (1) & (2), we get
5y - 15 = 3y + 7
y = 11 => x = 35
Therefore, the age of Sushma = 35 and her son = 11.
Correct Answer: 36 yrs
Explanation:
Let present ages of Sumit=w, Krishna=x, Rishabh=y and Rohit=z , then
w+x+y = 43x3 = 129 ---(i) and
w+y+z = 49x3 = 147 ---(ii)
Subtracting (i) from (ii), (w+y+z) - (w+x+y)=147 -129 , z- x =18 ---(iii)
Given Rohit's age => z = 54, so from (iii), x = 54-18 = 36
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