Algebra
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Q.

The age of Mr. Chetan in 2002 was 1/90 of his birth year. What is his age in 2006?

 A.

30

 B.

28

 C.

26

 D.

22

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Solution:
Option(C) is correct

Let age of Chetan in 2002 = $x$

So,

\(\dfrac{2002-x}{90}=x\)

$⇒ x=22$

So, Chetan’s age in 2006 is,

$= 22+4 = 26 \textbf{ yrs}$

Edit: For a quick solution making use of the option choices, check comment by Sravan Reddy.


(2) Comment(s)


JustAnotherStrugglerWithMath
 ()

I already like this guy.^



Sravan Reddy
 ()

Killing it slightly:

=> it should be a multiple of 90 - 1980 is nearest possibility - 22 years - Fits!!

=> Answer is 26 :P