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- Question
- The ratio of ages of Namrata and Divya is 4 : 3. The sum of their ages is 28 years. The ratio of their ages after 4 years will be:
Options- A. 3 : 4
- B. 5 : 4
- C. 5 : 6
- D. 6 : 5
- Correct Answer
- 5 : 4
ExplanationLet the present ages of Namrata and Divya are 4x and 3x years respectively; then
According to question,
4x + 3x = 28
? x = 4
Hence, their present ages are 16 and 12 years.
So required ratio = (16 +4) : (12 + 4) = 20 : 16 = 5 :4 - 1. The present age of Sanyal is 3 times the present age of his son. Six years hence, the ratio of their ages will be 5 : 2 respectively. The present age of Sanyal is:
Options- A. 48 years
- B. 50 years
- C. 54 years
- D. 60 years Discuss
- 2. Present age of Rahul is 5 years less than Ritu's present age. If 3 years ago Ritu's age was x years, which of the following represents Rahul's present age in years?
Options- A. x - 2
- B. x + 3
- C. x + 5
- D. x + 11 Discuss
- 3. Three years ago, the average age of a family of five members was 17 years. A baby having been born, the average age of the family is the same as what was three years ago. The present age of the baby is:
Options- A. 6 month
- B. 9 month
- C. 1 years
- D. 2 years Discuss
- 4. The average age of A, B and C is 25 years. The ratio of their age is 3 : 5 : 7. What is the age of A?
Options- A. 12 years
- B. 15 years
- C. 18 years
- D. 21 years Discuss
- 5. The ages of A and B are in the ratio of 11 : 13 respectively. After 7 years the ratio of their ages will be 20 : 23. What is the difference in years between their ages?
Options- A. 4 years
- B. 5 years
- C. 6 years
- D. 7 years Discuss
- 6. At present, the ratio between the ages of Gopal and Madhawa is 4 : 3. After 6 years, Gopal's age will be 26 years. The present age of Madhwa is:
Options- A. 21 years
- B. 191/2 years
- C. 15 years
- D. 12 yeras Discuss
- 7. The sum of the ages of Ram, Shyam and Mohan is 93 years. Ten years ago, the ratio of their ages was 2 : 3 : 4. The present age of Mohan is:
Options- A. 38 years
- B. 34 years
- C. 32 years
- D. 24 years Discuss
- 8. The age of Shyam is 1/3 rd that of his mother. He is 2 years older than his sister. The age of his sister be 8 years, what is the age of his mother?
Options- A. 25 years
- B. 60 years
- C. 48 years
- D. 30 years Discuss
- 9. Ramu is 48 years old. Robin is 6 years junior to Ramu and 14 years senior to Rohit. Ramu has two children ? Neethu and Vinu. Youngest sister of Rohit is Krishna and she is 15 years junior to him. So what is the age of Krishna?
Options- A. 13
- B. 15
- C. 14
- D. 12 Discuss
- 10. The average age of 30 students is 15 years. If the teacher's age is also included then the average age increases by 1 year. The age of the teacher is
Options- A. 56 years
- B. 46 years
- C. 35 years
- D. 45 years Discuss
Problems on Ages
Search Results
Correct Answer: 54 years
Explanation:
Let us assume the present age of son be x then his father present age will be 3x.
According to question,
Six years hence, the ratio of their ages will be 5 : 2 respectively
(3x + 6)/(x+6) = 5/2
? (3x + 6)2 = 5(x+6)
? 6x + 12 = 5x + 30
? x = 18
Hence, age of Sanyal = 3 x 18 = 54 years
Correct Answer: x - 2
Explanation:
3 Years age Ritu's age was x years, then
Ritu's present age = x + 3 years
According to question,
Present age of Rahul is 5 years less than Ritu's present age
Hence, present age of Rahul = x + 3 - 5 = x - 2 years
Correct Answer: 2 years
Explanation:
Let us assume the present age of baby Y year.
According to question,
Three years ago, the average age of a family of 5 members was 17 years.
The present Total age of the family of 5 member = 5 x 17 + 5 x 3 =100 ..........(1)
Again according to question,
The average age of the family is the same as what was three years ago.
The present average age of family of 6 member= 17
Total present age of family of 6 member / 6 = 17
(Total present age of family of 5 member + present age of baby)/6 = 17
100 + Y = 17 x 6
Y = 17 x 6 - 100 = 102 - 100 = 2 years
Correct Answer: 15 years
Explanation:
Let the present ages of A, B and C are 3x, 5x and 7x years respectively; then
According to question,
3x + 5x + 7x = 3 x 25
? 15x = 75
? x = 5
Hence, age of A = 3x = 3 x 5 = 15 years
Correct Answer: 6 years
Explanation:
Let the present ages of A and B are 11x and 13x years respectively; then
According to question,
After 7 years the ratio of their ages will be 20 : 23.
(11x + 7 ) / (13x + 7) = 20/23
? (11x + 7 ) 23 = 20 (13x + 7)
? 253x + 161 = 260x + 140
? 7x = 21
? x = 3
Hence, difference of their ages = 13x - 11x = 2x = 2 x 3 = 6 years
Correct Answer: 15 years
Explanation:
Let the present age of Gopal and Madhawa are 4x and 3x years respectively; then
According to question,
4x + 6 = 26
? 4x = 20
? x = 5
Hence, present age of Madhawa = 3x = 3 x 5 = 15 years
Correct Answer: 38 years
Explanation:
Let us assume 10 years ago, ages of Ram, Shyam and Mohan were 2x, 3x and 4x years respectively.
Present ages of Ram, Shyam and Mohan will be 2x + 10 , 3x + 10 and 4x + 10 years.
According to question,
2x + 10 + 3x + 10 + 4x + 10 = 93
? 9x + 30 = 93
? 9x = 93 - 30
? 9x = 63
? x = 7
The present age of mohan = 4x + 10 = 4x7 + 10 = 38 years
Correct Answer: 30 years
Explanation:
Correct Answer: 13
Explanation:
According to question ,
Given :- Age of Ramu = 48 years
Age of Robin = Age of Ramu - 6 years = 48 ? 6 = 42 years
Age of Rohit = Age of Robin - 14 years = 42 ? 14 = 28 years
Age of Krishna = Age of Rohit - 15 years = 28?15 =13 years
Hence , Age of Krishna is 13 years .
Correct Answer: 46 years
Explanation:
According to question ,
The average age of 30 students = 15 years
Total age of 30 students = 30 × 15 = 450 years
Total age of 30 students and teacher = ( 15 + 1 ) × 31 = 496 years
? Age of teacher = Total age of 30 students and teacher - Total age of 30 students
Age of teacher = ( 496 ? 450 ) = 46 years
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