1) Raju age after 15 years will be 5 times his age 5 years back, What is the present age of Ra
View Answer
View Explanation
Ans. C
Explanation :
Clearly,
x+15 = 5(x-5)
<=> 4x = 40 => x = 10
2) Sachin is younger than Rahul by 7 years. If the ratio of their ages is 7:9, find the age of Sachi
- 1) 23.5
- 2) 24.5
- 3) 12.5
- 4) 14.5
View Answer
View Explanation
Ans. B
Explanation :
If Rahul age is x, then Sachin age is x-7,
so (x-7)/x = 7/9
=> 9x-63 = 7x
=> 2x = 63
=> x = 31.5
So Sachin age is 31.5 - 7 = 24.5
3) The ratio between the present ages of P and Q is 6:7. If Q is 4 years old than P, what will be the ratio of the ages of P and Q after 4 yea
- 1) 7:8
- 2) 7:9
- 3) 3:8
- 4) 5:8
View Answer
View Explanation
Ans. A
Explanation :
Let P age and Q age is 6x years and 7x years.
Then 7x - 6x = 4 <=> x = 4
So required ratio will be (6x+4): (7x+4) => 28:32 => 7:8
4) Ages of two persons differ by 16 years. If 6 year ago, the elder one be 3 times as old the younger one, find their present a
- 1) 12,28
- 2) 14,30
- 3) 16,32
- 4) 18,34
View Answer
View Explanation
Ans. B
Explanation :
Let the age of younger person is x,
Then elder person age is (x+16)
=> 3(x-6) = (x+16-6) [6 years before]
=> 3x-18 = x+10
=> x = 14.
So other person age is x + 16 = 30
5) The sum of the ages of a father and son is 45 years. Five years ago, the product of their ages was four times the fathers age at that time. The present age of father and s
- 1) 34,11
- 2) 35,10
- 3) 36,9
- 4) 40,5
View Answer
View Explanation
Ans. C
Explanation :
Let sons age = x years. Then fathers age = (45 - x)years.
(xâ€”5)(45â€”xâ€”5) = 4(45- x - 5) hence (xâ€”5) = 4 so x = 9
Their ages are 36 years and 9 years.
6) Ten years ago, P was half of Q in age. If the ratio of their present ages is 3:4, what will be the total of their present ag
View Answer
View Explanation
Ans. A
Explanation :
Let the present age of P and Q be 3x and 4x respectively.
Ten years ago, P was half of Q in age
=> 2(3x â€“ 10) = (4x â€“ 10)
=> 6x â€“ 20 = 4x â€“ 10
=> 2x = 10
=> x = 5
7) The total age of A and B is 12 years more than the total age of B and C. C is how many year younger than
View Answer
View Explanation
Ans. B
Explanation :
Given that A+B = 12 + B + C
=> A â€“ C = 12 + B â€“ B = 12
=> C is younger than A by 12 years
8) The ages of two persons differ by 16 years. 6 years ago, the elder one was 3 times as old as the younger one. What are their present ages of the elder pers
View Answer
View Explanation
Ans. D
Explanation :
Let's take the present age of the elder person = x
and the present age of the younger person = x â€“ 16
(x â€“ 6) = 3 (x-16-6)
=> x â€“ 6 = 3x â€“ 66
=> 2x = 60
=> x = 60/2 = 30
9) The ages of two persons differ by 20 years. If 5 years ago, the elder one be 5 times as old as the younger one, their present ages (in years) are respective
- 1) 20,20
- 2) 20,10
- 3) 25,15
- 4) 30,10
View Answer
View Explanation
Ans. D
Explanation :
Let their ages be x and (x + 20) years.
5 (x - 5) = (x + 20 - 5) or 4x = 40 or x = 10.
Their present ages are 30 years and 10 years
10) Ratio between Rahul and Deepak is 4:3, After 6 Years Rahul age will be 26 years. What is Deepak present a
View Answer
View Explanation
Ans. B
Explanation :
Present age is 4x and 3x,
=> 4x + 6 = 26 => x = 5
So Deepak age is = 3(5) = 15