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- Question
The average age of 30 boys in a class is 10 years. If the age of their teacher is also included, the average increases by one year. The teacher's age in years is
Options- A. 38
- B. 40
- C. 30
- D. 41
- Correct Answer
- 41
- 1. You are given a question and two statements. Identify which of the statements is/are sufficient to answer the question. Question: What is the total age of the sisters 10 years from now? Statements: 1. Lina is 20 years old now. 2. Lina's sister's age is twice that of the age of Lina.
Options- A. Statement 1 alone is sufficient.
- B. Statements 1 and 2 together are not sufficient.
- C. Statement 2 alone is sufficient.
- D. Statements 1 and 2 together are sufficient. Discuss
- 2. James present age is 2/7th of his fathers present age. James brother is three year older to Jame. The respective ratio between present ages of James father and James brother is 14:5. What is the present age of James?
Options- A. 12 years
- B. 13 years
- C. 14 years
- D. 15 years Discuss
- 3. The sum of the ages of brother and sister at present is 21. Five years ago the product of their ages was 28. What is the age of the brother and the sister?
Options- A. 9, 12
- B. 6, 15
- C. 7, 14
- D. 8, 13 Discuss
- 4. Chandan is 2 years older than Ankit but 1 year younger than Sumit. Ankit is twice as old as Khushboo. If Khushboo's age is 25 years, what is the age (in years) of Sumit?
Options- A. 51
- B. 53
- C. 52
- D. 55 Discuss
- 5. The sum of ages of Ram and his son is 48. If his uncle's age is also included the average becomes 40. What is the age of Ram's uncle?
Options- A. 48
- B. 50
- C. 72
- D. 34 Discuss
- 6. Each question contains Quantity I and Quantity II. Read the contents clearly and answer your questions accordingly. Quantity I: 3 years ago the ratio of age of A and B is 3: 4 after 2 years the sum of their ages is 45. Then find the present age of A? Quantity II: 5 years ago, the ratio of age of p and Q id 3: 4 P?s age after 6 years is equal to the present age of Q. the find the present age of P?
Options- A. Quantity I > Quantity II
- B. Quantity I ? Quantity II
- C. Quantity I < Quantity II
- D. Quantity I < Quantity II Discuss
- 7. Seven years from now Virat will be twice as old as Mohinder. Five years ago Mohinder's age was one year less than 2/5 of Virat's age. What is Virat's present age?
Options- A. 55 yrs
- B. 51 yrs
- C. 57 yrs
- D. 53 yrs Discuss
- 8. Average age of A and B, 2 years ago was 26. If the age of A, 5 years hence is 40 years, and B is 5 years younger to C, then find the difference between the age of A and C?
Options- A. 6
- B. 9
- C. 12
- D. 15 Discuss
- 9. At present, the sum of ages of 4 people is 76. After 7 years, the ratio will be 7:6:5:8. Find out the present age of C?
Options- A. 12
- B. 11
- C. 17
- D. 13 Discuss
- 10. 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
Problems on Ages
Search Results
Correct Answer: Statements 1 and 2 together are sufficient.
Correct Answer: 12 years
Explanation:
James father present age = x
James age = 2/7 x
James brother age = 2x/7 + 3
x = 42
=> 2x/7 = 12 yrs
Correct Answer: 9, 12
Correct Answer: 53
Correct Answer: 72
Correct Answer: Quantity I < Quantity II
Explanation:
Quantity I= Let 3 year ago the age of A and B be 3x and 4x respectively
Then ATQ 3x+5+4x+5=45 X=5
Hence present age of A=3x+3=18year
Quantity II== Let 5 year ago the age of p and q be 3x and 4x respectively
Then ATQ
3x+11=4x+5
X=6 Hence present age of P=3x+5=23
Hence Quantity I < Quantity II
Correct Answer: 55 yrs
Correct Answer: 9
Explanation:
Let the present ages of A & B to be ?a? & ?b? respectively.
Hence, 2 years ago, their ages must have been (a-2) & (b-2) respectively.
Average of their ages at that time = 26
Hence,
[(a-2)+(b-2)]/2 = 26
(a-2)+(b-2) = 52
a+b = 56
Age of A, 5 year hence = 40 years
Hence, (a+5) = 40
a = 35 years
Hence, b = 56 - 35 = 21 years
B = (C-5)
Hence, C = 21+5 = 26 years
Age difference between A & C = 35 - 26 = 9 years.
Correct Answer: 13
Explanation:
Ans.
Currently :
A+B+C+D = 76
According to ques , after 7 years
A+B+C+D = 7x+6x+5x+8x = 76+7*4
26x = 76 + 28
X = 104/26
x = 4
C?s present age = 5x ? 7 =20 ? 7
= 13
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
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