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- Question
The average age of 19 boys in a class is 21 years. If the teacher's age is included, the average increases to 22 years. What is the teacher's age?
Options- A. 39 years
- B. 41 years
- C. 40 years
- D. 44 years
- Correct Answer
- 41 years
- 1. The average of the ages of Rajan and his son is 20. If Rajan's present age is three times the age of his son, then what will be the age of Rajan 5 years from now?
Options- A. 40 years
- B. 28 years
- C. 35 years
- D. 25 years Discuss
- 2. The ratio of present ages of P and Q is 7:9. Before 10 years the ratio of their ages was 5:7. What is Q's present age (in years)?
Options- A. 35
- B. 45
- C. 25
- D. 55 Discuss
- 3. Seven years ago, the age of Sahil was equal to the present age of Nihal. Sum of Sahil's age 5 year ago and Nihal's age 6 years later is 58 years. If Ruchi is 4 years elder to Sahil, then what will be Ruchi's age (in years) after 10 years?
Options- A. 38
- B. 46
- C. 42
- D. 36 Discuss
- 4. The ratio of present ages of P and Q is 5 : 8. Three years later their ages will be in ratio 8 : 11. What is the present age (in years) of Q?
Options- A. 5
- B. 11
- C. 14
- D. 8 Discuss
- 5. The average age of 8 men is increased by 4 years when one of them whose age is 30 years is replaced by a new man. What is the age of new man?
Options- A. 55 Years
- B. 62 Years
- C. 42 Years
- D. 69 Years Discuss
- 6. The sum of ages of 4 children born at intervals of 4 years each is 60. What is the age of the youngest child?
Options- A. 7
- B. 9
- C. 10
- D. 12 Discuss
- 7. The average age of 36 students in a group is 14 years. When the teacher's age is included in it, the average increases by one. The teacher's age in years is
Options- A. 31
- B. 51
- C. 36
- D. D) Discuss
- 8. The average age of a class of 39 students is 15 years. If the age of the teacher is included, then the average increases by 3 months. Find the age of the teacher.
Options- A. 30
- B. 25
- C. 35
- D. 40 Discuss
- 9. The average age of A and B is 18 years. After 3 years, C joins them and the average ages of A, B and C becomes 22 years. The age of C is ?
Options- A. 20 years
- B. 21 years
- C. 24 years
- D. 23 years Discuss
- 10. A man was 32 years of age when he had his first son. His wife was 35 years of age when his son attained the age of 7 years. The difference between the age of the father and the mother is _____
Options- A. 7 years
- B. 3 years
- C. 5 years
- D. 4 years Discuss
Problems on Ages
Search Results
Correct Answer: 35 years
Correct Answer: 45
Correct Answer: 46
Correct Answer: 8
Correct Answer: 62 Years
Explanation:
Let the average of 8 men be x. Age of new man be N.
Total age of 8 men = 8x
? x + 4 = ((8x ? 30) + N)/8
? 8x + 32 = 8x ? 30 + N
? N = 32 + 30
? N = 62
Correct Answer: 9
Correct Answer: 51
Correct Answer: 25
Correct Answer: 24 years
Correct Answer: 4 years
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