a2zinterviews

25.	If 6 years are substracted from the present age of Gagan and the remainder is divided by 18, then the present age of his grandson Anup is obtained. If Anup is 2 years younger to Madan whose age is 5 years, then what is Gagan's present age?
	A.  48 years
	B.  60 years
	C.  84 years
	D.  96 years

Solution

Anup's age = (5 - 2)years = 3 years. Let Gagan's age be x years. Then, x - 6 / 18 = 3. ‹=› x - 6 = 54 ‹=› x = 60.

26.	The total of the ages of Jayant, Prem and Saransh is 93 years. Ten years ago, the ratio of their ages was 2 : 3 : 4. What is the present age of Saransh?
	A.  24 years
	B.  32 years
	C.  34 years
	D.  38 years

Solution

Let the ages of Jayant, Prem and Saransh 10 years ago be 2x, 3x and 4x years respectively. Then, (2x + 10)+(3x + 10)+(4x + 10) = 93. ‹=›9x = 63 x = 7. ∴ Saransh's present age = 4x + 10 = 38 years.

27.	The age of father 10 years ago was thrice the age of his son. Ten years hence father's age will be twice that of his son. The ratio of their present ages is
	A.  5 : 2
	B.  7 : 3
	C.  9 : 2
	D.  13 : 4

Solution

Let the ages of father and son 10 years ago be 3x and x years respectively. Then ‹=›(3x + 10) + 10 ‹=›2[(x+10)+10] ‹=› 3x+20 = 2x+40 x = 20. ∴ Required ratio = (3x+10) : (x+10) ‹=›70 : 30 ‹=›7 : 3.