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- Question
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
- Correct Answer
- 36 yrs
ExplanationLet 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 - 1. 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
- 2. 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
- 3. 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
- 4. 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
- 5. 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 Discuss
- 6. A person says that his son is 5 times as old as his daughter and his wife is 5 times older than his son and he is twice the age of his wife . The sum total of all the ages equals the age of the grand mother who celebrated her 81st birthday today. How old was his son?
Options- A. 50 yrs
- B. 25 yrs
- C. 72 yrs
- D. 40 yrs Discuss
- 7. Eighteen years ago, a mother was three times as old as her daughter. Now the mother is only twice as old as her daughter. Then the sum of the present ages of daughter and the mother is ?
Options- A. 84 yrs
- B. 96 yrs
- C. 116 yrs
- D. 108 yrs Discuss
- 8. What is the age of Teja? A: Four years ago, Raju was as old as Teja is at present. B: Sita?s present age is two times of Raju?s present age. C: The average age of Teja and Sita is 19 years.
Options- A. Any two statements are sufficient to give answer
- B. Only C is sufficient
- C. All of three statements are necessary to give answer
- D. Even using all the three statements answer cannot be found Discuss
- 9. 4 years ago, the ratio of 1/2 of Anita's age at that time and four times of Bablu's age at that time was 5 : 12. Eight years hence,1/2 of Anita's age at that time will be less than Bablu's age at that time by 2 years. What is Bablu's present age?
Options- A. 10 years
- B. 24 years
- C. 9 years
- D. 15 years Discuss
- 10. The ratio of present ages of Ramita and Satyajit is 9:7. After 9 years the ratio of their ages will be 5:4. What is Ramita's present age?
Options- A. 81
- B. 63
- C. 56
- D. 80 Discuss
Problems on Ages
Search Results
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 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: 20 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: 29 yrs
Explanation:
Total 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.
Correct Answer: 50 yrs
Explanation:
Let the daughter age be 'x'
Therefore, Son age = 5x, Mother age = 25x, Person age = 50x.
Thus we get, x+5x+25x+50x = 81
81x = 81
x = 1
Daughter's age = 1, Son's = 5, Mother's = 25, Person's age = 50.
Correct Answer: 108 yrs
Explanation:
Let the present ages of the mother and daughter be 2x and x years respectively.
Then, (2x - 18) = 3(x - 18) => x = 36
Required sum = (2x + x) = 108 years.
Correct Answer: All of three statements are necessary to give answer
Explanation:
From the given statements A, B & C
Let the present age of Teja = P
Raju present age = P + 4
Sita's present age = 2(P + 4)
Average of ages of Sita & Teja = 19
=> (2P + 8 + P)/2 = 19
= 3P + 8 = 38
=> P = 30/3 = 10
Hence, the present age of Teja = P = 10 yrs.
Therefore, by using all the three statements A, B & C we can find the age of Teja.
Correct Answer: 10 years
Correct Answer: 81
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