Discussion
Home ‣ Verbal Reasoning ‣ Problems on Ages Comments
- 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
ExplanationThe average age of 19 boys in a class = 21 years
Sum total of ages of 19 boys = 19 × 21 years = 399 years
The average age of 19 boys and teacher in a class = 21 years
Sum total of ages of 19 boys and teacher = 20 × 22 years = 440 years
? Age of teacher = Sum total of ages of 19 boys and teacher - Sum total of ages of 19 boys
Age of teacher = ( 440 ? 399 ) years = 41 years - 1. At present, the ratio between the ages of Arun and Deepak is 4 : 3. After 6 years, Arun's age will be 26 years. What is the age of Deepak at present?
Options- A. 12 years
- B. 15
- C. 19 years
- D. 25 years Discuss
- 2. A man was 31 years of age when he had his first son. His wife was 26 years of age when his son attained the age of 7 years. The difference in age between the man and his wife is :
Options- A. 7 years
- B. 9 years
- C. 5 years
- D. 12 years Discuss
- 3. Adam who is 20 years old is 4 times as old as Mary. What will be Mary's age when Adam is twice as old as her?
Options- A. 35 years
- B. 15 years
- C. 30 years
- D. 17 years Discuss
- 4. A father said to his son, ''I was as old as you are at the present at the time of your birth''. If the father's age is 52 years now, then the son's age 8 years back was
Options- A. 10 years
- B. 18 years
- C. 12 years
- D. 20 years Discuss
- 5. Joan's age is 42 years and Kelvin's age is 26 years. How many years ago was Kelvin's age half of Joan's age?
Options- A. 6 Years
- B. 4 Years
- C. 10 Years
- D. 8 Years Discuss
- 6. The sum of the ages of father and a son presently is 70 years. After 10 years, the son's age is exactly half that of the father. What are their ages now?
Options- A. 45 years, 25 years
- B. 50 years, 20 years
- C. 47 years, 23 years
- D. 50 years, 25 years Discuss
- 7. If '+' means 'minus', '-' means 'multiply', '÷' means 'plus' and 'x' means 'divide', then 10 x 5 ÷ 3 - 2 + 3 =?
Options- A. 5
- B. 53/3
- C. 21
- D. 36 Discuss
- 8. If "T" means (x), 'U' means (-) , 'X' means (÷) and W means (+), then what will be the value of the following expression?
(50 X 2) W (28 T 4 )
Options- A. 142
- B. 158
- C. 137
- D. 163 Discuss
- 9. Select the correct combination of mathematical signs to replace the * signs and to balance the given equation.
40 * 2 * 4 * 3 * 8
Options- A. + - ÷ =
- B. ÷ + = x
- C. + ÷ x =
- D. + x - = Discuss
- 10. 4 - 4 = 17, 6 - 6 = 37, 2 - 2 = 5, 5 - 5 =?
Options- A. 27
- B. 26
- C. 20
- D. 24 Discuss
Problems on Ages
Search Results
Correct Answer: 15
Explanation:
Correct Answer: 12 years
Explanation:
Age of man at the birth of first son = 31 years
The age of wife at the birth of her son = 26 ? 7 = 19 years
Required difference = Age of man at the birth of first son - The age of wife at the birth of her son
Required difference = ( 31 ? 19 ) years = 12 years
Correct Answer: 15 years
Explanation:
Correct Answer: 18 years
Explanation:
Suppose present age of son = P years
Present age of father = 52 years
According to question,
Father's age at son's birth = son's present age
? 52 ? P = P
P + P = 52 years
? 2P = 52
? P = 26 years
Son's age 8 years back = present age of son - 8 years = 26 ? 8 = 18 years
Correct Answer: 10 Years
Explanation:
Correct Answer: 50 years, 20 years
Explanation:
Correct Answer: 5
Explanation:
? = 10 x 5 ÷ 3 - 2 + 3
= 10 ÷ 5 + 3 x 2 - 3
Apply the rule BODMAS
Do things in Brackets First
(Powers, Roots) before Multiply, Divide, Add or Subtract.
Multiply or Divide before you Add or Subtract
= 10 ÷ 5 + 3 x 2 - 3
= 2 + 3 x 2 - 3
Addition
= 2 + 6 - 3
Subtraction
= 8 - 3 = 5
Correct Answer: 137
Explanation:
Given expression, (50 x 2) W (28 T 4)
After interchanging the letters with symbols, we get
(50 ÷ 2) + (28 x 4) = 25 + 112 = 137
Correct Answer: ÷ + = x
Explanation:
Given, 40* 2* 4 * 3 * 8
Let us check all the options one by one.
From option (a), putting the signs in given equation, we get
40 + 2 - 4 ÷ 3
= 8 ? 42 - 4/3 = 8
? 126 - 4 = 24 ? 122 = 24
? L H S ? R H S
So, option (a) is incorrect.
From option (b), putting the signs in given equation, we get
40 ÷ 2 + 4 = 3 x 8
? 20 + 4 = 24 ? 24 = 24
LHS = RHS
Hence, option (b) is correct and there is no need to check remaining options.
Correct Answer: 26
Explanation:
As, 4 - 4 ? 4 x 4 + 1 = 17
6 - 6 ? 6 x 6 + 1 = 37
2 - 2 ? 2 x 2 + 1 = 5
Similarly, 5 - 5 ? 5 x 5 + 1 = 26
? ? = 26
Comments
There are no comments.More in Verbal Reasoning:
Programming
Copyright ©CuriousTab. All rights reserved.