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- Question
- The average age of a family of five member is 24. If the present age of the youngest member is 8 yr, what was the average age of the family at the time of the birth of the youngest member?
Options- A. 20 yr
- B. 16 yr
- C. 12 yr
- D. 18 yr
- Correct Answer
- 20 yr
Explanation? Total age of five members of a family = 24 x 5 = 120
? Total age of four members at the time of birth of youngest = 120 - 8 x 5
= 120 - 40 = 80 yr
Hence, required average age = 80/4 = 20 yr - 1. The ratio of the present age of Manoj to that of Wasim is 3 : 11. Wasim is 12 yr younger than Rehana. Rehana's age after 7 yr will be 85 yr. What is the present age of Manoj's father, who is 25 yr older than Manoj?
Options- A. 43 yr
- B. 67 yr
- C. 45 yr
- D. 69 yr Discuss
- 2. At present, the ratio of the ages of Maya and Chhaya is 6 : 5 and fifteen years from now, the ratio will get changed to 9 : 8. Maya's present age is?
Options- A. 21 yr
- B. 24 yr
- C. 30 yr
- D. 40 yr Discuss
- 3. Raman'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 yr. What is the difference between the present ages of Raman's daughter and Raman's mother?
Options- A. 45 yr
- B. 40 yr
- C. 50 yr
- D. Connot be determined Discuss
- 4. The average of the present ages of Sachin and Saurabh is 36 yr. If Sachin is 8 yr older than Saurabh, what is the saurabh's present age?
Options- A. 30 yr
- B. 34 yr
- C. 32 yr
- D. 40 yr Discuss
- 5. At present, Anil is 1.5 times of Purvi's age. 8 yr hence, the respective ratio between Anil and Purvi's ages will be 25 : 18 What is purvi's present age?
Options- A. 50 yr
- B. 28 yr
- C. 42 yr
- D. 36 yr Discuss
- 6. Four years ago, shyam's age was 3/4 times of that of Ram. Four year hence, Shyam's age will be 5/6 times that of Ram. What is the present age of Shyam?
Options- A. 15 yr
- B. 20 yr
- C. 16 yr
- D. 24 yr Discuss
- 7. At the present, Palash is three times Arnav's age. After 7 yr, Palash will be twice Arnav's age, then how many times will Palash's age be in another 14 yr time with respect to Arnav's age then?
Options- A. 1
- B. 3
- C. 2
- D. 1.5 Discuss
- 8. The average age of a man and his son is 27 yr. The ratio of their ages is 8 : 1, respectively. What will be the son's age after 6 yr?
Options- A. 6 yr
- B. 14 yr
- C. 12 yr
- D. 8 yr Discuss
- 9. Ravi's brother is 3 yr elder to him. His father was 28 yr of age when his sister was born, while his mother was 26 yr of age when he was born. If his sister was 4 yr of age when his brother was born, the ages of Ravi's father and mother respectively when his brother was born were?
Options- A. 32 yr and 23 yr
- B. 32 yr and 29 yr
- C. 35 yr and 29 yr
- D. 35 yr and 33 yr Discuss
- 10. The ratio of ages of Mohan and Sohan is 3 : 4. Four years ago the ratio was 5 : 7. Find the present ages of Mohan and Sohan.
Options- A. 24 years, 32 years
- B. 20 year, 30 years
- C. 25 years, 30 years
- D. None of these Discuss
Problems on Ages
Search Results
Correct Answer: 43 yr
Explanation:
Let the present ages of Manoj and Wasim are 3k yr and 11k yr, respectively.
According to the question ,
11k = 85 - 7 - 12
? 11k = 66
? k = 6
? Present age of Manoj = 3 x 6 = 18 yr
Hence, present age of Manoj's father = 18 + 25 = 43 yr
Correct Answer: 30 yr
Explanation:
Let the present ages of Maya and Chhaya are 6N and 5N yr. respectively.
According to the question, After 15 yr,
(6N + 15) / (5N + 15) = 9/8
? 48N + 120 = 45N + 135
? N = 5
Hence, present age of Maya = 5 x 6 = 30 yr
Correct Answer: 50 yr
Explanation:
Let age of Raman's daughter = N yr
Then, age of Raman's = 3N yr
and age of Raman's mother = (13/9) x 3N = 13N/3 yr
According to the question, N + 3N + 13N/3 = 125
? 3N + 9N + 13N = 125 x 3
? N = (125 x 3)/25 = 15
Hence, required difference = 13N/3 - N = 10N/3
= (10 x 15)/3 = 50 yr
Correct Answer: 32 yr
Explanation:
? Total age of Sachin and Saurabh = 36 x 2 = 27 yr
Let age of Saurabh = x yr
Then, age of Sachin = (x + 8) yr
According to the question, x + x + 8 = 72
? 2x = 64
? x = 32
Hence, Saurabh's present age = 32 yr
Correct Answer: 28 yr
Explanation:
Let age of Purvi = N yr
Then, age of Anil = 1.5N yr
According to the question,
(1.5N + 8)/(N + 8) = 25/18
? 27N + 144 = 25N + 200
? N = 56/2 = 28
Hence, present age of Purvi = 28 yr
Correct Answer: 16 yr
Explanation:
4 yr ago, let Ram's age = k yr and Shyam's age = 3k/4 yr
Now, Ram's present age = (k + 4) yr
and Shyam's present age = (3k/4 + 4) yr
According to the question, 5/6(k + 4 + 4) = (3k/4 + 4 + 4)
? 4 (5k + 40) = 6(3k + 32)
? 20k + 160 = 18k + 192
? 2k = 32
? k = 16
Hence, present age of Shyam = (3/4) x 16 + 4 = 16 yr
Correct Answer: 1
Explanation:
Let Arnav's age = k yr
Then, Palash's age = 3k yr
Acoording to the question, 3k + 7 = 2(k + 7)
? 3k + 7 = 2k + 14
? k = 7
? Age of Arnav after 14 yr = 7 + 14 = 21 yr
and Palash's present age = 21 yr
Hence, Palash's age is one time of Arnav's age .
Correct Answer: 12 yr
Explanation:
Let ages of man and his son are 8k yr and k yr, respectively .
According to the question,
(8k + k)/2 = 27
? k = (27 x 2)/9 = 6
Hence, age of son after 6 yr = 6 + 6 = 12 yr
Correct Answer: 32 yr and 23 yr
Explanation:
When Ravi was born, his mother's age was 26 yr and his elder brother was 3 yr elder to him.
? Mother's age when brother was born
= 26 - 3 = 23 yr
Ravi's father was 28 yr of age when his sister was born and his sister was 4 yr of age when his brother was born
? Age of father when brother was born
= 28 + 4 = 32 yr
Correct Answer: 24 years, 32 years
Explanation:
Let us assume the present ages of Mohan and Sohan be 3x years and 4x years; then,
4 Four years ago the ages was 3x - 4 and 4x - 4 years.
According to question, 4 Four years ago the ratio was 5 : 7
( 3x - 4 ) / ( 4x - 4 ) = 5/7
? ( 3x - 4 ) 7 = 5 ( 4x - 4 )
? 21x - 28 = 20x - 20
? 21x - 20x = 28 - 20
? x = 8
Hence, their present ages, 3x = 3 x 8 = 24 years; 4x = 4 x 8 = 32 years.
So their present ages 24 and 32 years.
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