Question

15. After 12 years, Kanwar shall be 3 times as old as he was 4 years ago. Find his present age.

Answer 1

$\sf\red{\underline{\underline{Answer:}}}$

$\sf{The \ present \ age \ of \ Kanwar \ is \ 12 \ years.}$

$\sf\orange{Given:}$

$\sf{\implies{After \ 12 \ years, \ Kanwar \ shall}}$

$\sf{be \ 3 \ times \ as \ old \ as \ he \ was \ 4 \ years}$

$\sf{ago.}$

$\sf\pink{To \ find:}$

$\sf{Present \ age \ of \ Kanwar.}$

$\sf\green{\underline{\underline{Solution:}}}$

$\sf{Let \ the \ present \ age \ of \ Kanwar \ be \ x \ years.}$

$\sf{According \ to \ the \ condition.}$

$\sf{x+12=3(x-4)}$

$\sf{x+12=3x-12}$

$\sf{x-3x=-12-12}$

$\sf{-2x=-24}$

$\sf{\therefore{x=\frac{-24}{-2}}}$

$\boxed{\sf{\therefore{x=12}}}$

$\sf\purple{\tt{\therefore{The \ present \ age \ of \ Kanwar \ is \ 12 \ years.}}}$

Answer 2

$\bold\red{ANSWER...}$

• present age of kanwar is 12 years.

$\bold\green{SOLUTION...}$

let the present age of kanwar be X years.

A.T.Q.

➜12+ x=3(x-4)

➜12+x=3x-12

➜x-3x= -12-12

➜-2x=-24

➜x= -24/-2

➜x=12

Therefore, the present age of kanwar is 12 years.