SOLUTION: If you place 1 before a number, the new number is 3 times as large as the original number. What is the original number?

Algebra.Com
Question 764323: If you place 1 before a number, the new number is 3 times as large as the original number. What is the original number?
Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!
This seems to be an open ended problem. We are not given how many digits the original number.

ONE DIGIT, U
Putting 1 in front, ,

which seems to work.

TWO DIGIT, TU
Putting 1 in front, ,

simplify to
, which when examined for the digits possible to satisfy, becomes and ;
is the only two digit number.

You can try similar process for three and more digit numbers.

RELATED QUESTIONS

if you place 1 before a number,the new number is 3 times as large as the original... (answered by rothauserc)
If you put 1 before a number, the new number is 3 times as large as the original number.... (answered by josgarithmetic,seshumallipeddi,MathTherapy)
Given a six digit number whose last digit is 1. If you place 1 as the first digit the... (answered by ankor@dixie-net.com)
The value of a two-digit number is twice as large as the sum of its digits. If the... (answered by stanbon)
If you double a number then add 36 you get five times the original number. What is the... (answered by brysca)
if a certain two digit number is divided by the sum of its digits, the quotient is 3. if... (answered by jim_thompson5910)
A copying machine can make copies that are 80%, 100% and 150% as large as the original.... (answered by Edwin McCravy)
The sum of the digits of a two-figured number is 9. If the digits are interchanged, the... (answered by josgarithmetic,MathTherapy)
the digit in the tens place of two digit number is 3 times that in the units place...If... (answered by ewatrrr)