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A father is now three times as old as his son. Five years back, he was four times as old as his son. The age of the son (in years) is? |
A) 12
B) 15
C) 18
D) 20
Correct Answer : 15 Explanation : Let son’s age be x years. Then, father’s age = (3x) years. As given, Five years back, father’s age was four times |
Today is Varun’s birthday. One year, from today he will be twice as old as he was 12 years ago. How old is Varun today ? |
A) 20
B) 22
C) 25
D) 27
Correct Answer : 25 Explanation : Let Varan’s age today = x years. As given, after an year he will be twice as old as he was 12 years ago |
A mother is 50 years old and her son is 22 years old. The mother will be twice as old as her son after ......years ? |
A) 4
B) 5
C) 6
D) 8
Correct Answer : 6 Explanation : Let's the after x years mother's age be twice that of his son. So (50+x)=2*(22+x) |
From today, after five years the age of father will be three times of the age of the son, while five years ago father’s age was seven times of the age of his son. Then the present ages of father and son, in years are respectively? |
A) 31 and 7 B) 47 and 11 C) 40 and 10 D) 30 and 11 Correct Answer : 40 and 10 Explanation : Let the father's age be x and the son's age be y |
Leela got married 6 years ago.Today her age is 1(1/4) times her age at the time of her marriage. her son’s age is 1/10 times her age. What is the present age of her son? |
A) 1 year B) 2 years C) 3 years D) 4 years Correct Answer : 3 years Explanation : Let the age of Leela at her marriage was x years. |
Five years ago, Somi’s age at that time was 1/3 rd of Amit’s age at that time. The respective ratio between Amit's age six years hence and Somi’s age twelve years hence, will be 7 : 4. What was Somi’s age three years ago? |
A) 13 yr B) 29 yr C) 17 yr D) 25 yr Correct Answer : 17 yr Explanation : Let the present age of Somi = X years and present age of Amit = Y years Now, solving Eqs. (i) and (ii), we have X = 20 years |
The ages of Gyanendra and Jitendra are in the ratio of 12:7 respectively. After 6 years, the ratio of their ages will be 3:2 respectively . find the difference in their ages? |
A) 10 years
B) 24 years
C) 36 years D) 48 years
Correct Answer : 10 years Explanation : Let,the present age of Gyanendra and Jitendra are 12x and 7x. |
After 12 years, I shall be 3 times as old as I was 4 years ago. My present age is: |
A) 10 years B) 12 years C) 13 years D) 14 years Correct Answer : 12 years Explanation : let the present age be x Then as given, (x+12)= 3(x-4) |
A group of 15 people has average age of 45 years. Two persons are excluded and the average of the remaining is increased by 5 years. What is the average age of the two persons who have been excluded? |
A) 20 years
B) 12.5 years
C) 15 years
D) 10 years
Correct Answer : 12.5 years Explanation : Sum of values = Average of values * Number of values Total age of 15 people = 45 * 15 = 675 years Total age of 2 excluded people = Total age of 15 people – Total age of remaining people after 2 person left Average of 2 excluded people = Total age of 2 excluded people/2 |
The age of A is six times the age of his son. A's father is 40 years older than him. Together, they are 118 years old. What is the age of A? |
A) 18 years B) 36 years C) 42 years D) 76 years Correct Answer : 36 years Explanation : Let X be age of son, A's age= 6X and A's father age= 6X+40. |
The age of two persons differ by 2 years. If the sum of their ages is equal to the square root of 144 then find the age of the elder among the two person? |
A) 2 B) 6 C) 7 D) 10 Correct Answer : 7 Explanation : Let the ages X and Y X+Y= √144 from eq (1) and (2) X-Y= 2 X=7 The age of the elder is 7 years |
A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, the how old is A? |
A) 10 B) 12 C) 15 D) 18 Correct Answer : 12 Explanation : Let x be current age of C Total of their ages = x + 2x + 2x + 2 = 27 |
The ratio of the present ages of a father and his son is 9 : 4. After five years, the sum of their ages will be 75 years. What is the present age of the father? |
A) 45 years B) 40 years C) 35 years D) 30 years Correct Answer : 45 years Explanation : Let, Present age of father is 9x and age of son is 4x After five years: as is given,Sum of their ages after five years = 75 Present age of father, 9x= 9 × 5 = 45 years. |
In a group of 7 people, the average age is found to be 17 years. Two more people joined with an average age 19 years. One person left the group whose age was 25 years. What is the new average age of the group? |
A) 17.5 Years B) 16.5 Years C) 18 Years D) 16 Years Correct Answer : 16.5 Years Explanation : Total age of 7 people, average age is 17 years = 7 * 17 = 119 Total age of 8 people after one person left the group = 157 - 25 = 132 New average age of the group = 132/8 = 16.5 years |
The present age of a father is 3 years more than three times the age of his son.Three years hence, father's age will be 10 years more than twice the age of the son.Find the present age of the father? |
A) 29 B) 31
C) 33
D) 43 Correct Answer : 33 Explanation : Let the present age be 'x' years. Hence father's present age = 3x+3 = 33 years |
One year ago the ratio of Ramu & Somu age was 6:7 respectively. Four years hence their ratio would become 7:8. How old is Somu? |
A) 32 B) 34
C) 36
D) 38 Correct Answer : 36 Explanation : Let us assume Ramu & Somu ages, 1 year ago, be 6x and 7x respectively. |