Question

A person was asked to state his age in years. His reply was , Take my age 3 years hence, multiply it by 3 and subtract 3 times my age 3 years ago and you will know how old I am." What was the age of the person ?
A)

Answer 1

Answer:

Let the current age of this man be x

this person age 3 years hence from now will be (x + 3)

This person age 3 years ago was (x - 3).

As per statement his current age x is expressed as per following equation

3 (x + 3) - 3 (x - 3) = x

On having the equation

3x + 9 - 3x + 9 = x

3x - 3x - x = - 9 - 9

3x - 4x = - 18

-x = - 18

x = 18

Thus the age of this man is 18 years.

Step-by-step explanation:

Hope you got ur answer

Answer 2

» Question -

A person was asked to state his age in years. His reply was , Take my age 3 years hence, multiply it by 3 and subtract 3 times my age 3 years ago and you will know how old I am." What was the age of the person ?

» Solution -

$\rightarrow Assume\: present\:age\:of\:person\:as\:x\\ \\ \\ \rightarrow Equation\\ \\ \\ \three\:years\:hence= x+3\\ \\ \\ multiply\:by\:3 = 3(x+3) = 3x+9\\ \\ \\ subtract\:three\:times\:age\:three\:years\:ago= \\ \\ \\ (3x+9)-3(x-3) = 3x+9-3x+9 \\ \\ \\3x\:will\:get\:cancelled$

${\boxed{\pink{\therefore \:age = 18 \:years}}}$