SOLUTION: if the ones digit of a number is taken at first than it should become the double of the number. for eg 54 if we take 4 at the first than it should become the double i.e 108 . what

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Question 734178: if the ones digit of a number is taken at first than it should become the double of the number. for eg 54 if we take 4 at the first than it should become the double i.e 108 . what can be the number???
Found 2 solutions by lynnlo, KMST:
Answer by lynnlo(4176) About Me  (Show Source):
Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
Are you trying to ask the reverse of the problem below?

Question 714806: Find a natural number for which if we move the first digit to the last place, the number that will emerge will be half of the original.

From the number 105,263,157,894,736,842, if you take the 2 in the ones place and move to the front of the number, you get
210,526,315,789,473,684 which is double the original number.
When I worked through Question 714806, I found a formula, and suspected that there would be an infinite number of answers, but I showed the smallest answers I could find. I believe there is more than one answer to the reverse problem, but the other answers will be larger numbers.