a2zinterviews

1.	Present ages of Sameer and Anand are in the ratio of 5 : 4 respectively. Three years hence, the ratio of their ages will become 11 : 9 respectively. What is Anand's present age in years?
	A.   24
	B.   27
	C.  40.
	D.   cannot be determined

Solution

Let the present ages of sameer and anand be 5x years and 4x years respectively. Then 5x+3/4x+3=11/9 ≈9(5x+3)=11(4x+3) x=6. Anands's present age = 4x =24 years.

2.	The ratio between the present ages of P and Q is 5 : 7 respectively. If the difference between Q's present age and P's age afler 6 years is 2, what is the total of P's and Q's present ages?
	A.  46 years
	B.  48 years
	C.  52 years
	D.  56 years

Solution

Let the present ages of P and Q be 5x years and 7x years respectively. Then 7x-(5x+6)=2 2x=8 x=4. Required sum = 5x+7x =12x =12×4 =48 years.

3.	Eighteen years ago, a father was three times as old as his son. Now the father is only twice as old as his son. Then the sum of the present ages of the son and the father is
	A.  54.
	B.  72
	C.  105
	D.  108

Solution

Let the present ages of Father and Son be 2x years and x years respectively. Then (2x-18)=3(x-18) 2x-18=3x-54 x=54-18 x=36. Required sum = (2x+x) =3x =3x36 =108 years.