1.

3 years ago Ambuj was thrice as old as Avinash. If the ratio of their percent ages is 8 : 3 respectively, what is the difference between their present ages in years?1). 32 years2). 30 years3). 28 years4). 35 years

Answer»

GIVEN,

Let present age of AMBUJ and Avinash be A years and B years respectively.

⇒ (A – 3) = 3(B – 3)

⇒ A – 3 = 3B – 9

⇒ 3B – A = 6

Given,

A : B = 8 : 3

⇒ A = 8B/3

Solving EQUATIONS,

⇒ 3B – 8B/3 = 6

⇒ 9B – 8B = 18

⇒ B = 18

⇒ A = (8 × 18)/3

⇒ A = 48

Difference between the present ages of A and B =

= 48 – 18

= 30

∴ Difference between the present ages of Ambuj and Avinash is 30 years.


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