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What 5-digit number has the following property?

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What 5-digit number has the following property? If we put numeral 1 in front of the number, we get a number three times smaller, than if we put the numeral 1 behind this number.

posted Aug 7, 2014 by Rajneesh

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2 Answers (Check Answer ▼)





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Can you find an eight digit number with the following property.
The first digit tells you how many zeros there are in the number, the second digits tells you how many ones there are in the number, the third digit tells you how many twos there are in the number, etc.
For example, with the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.
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i) It is a square number
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A number is an ordered number when its digits are in an increasing sequence. For example, 136 is an ordered number but 163 is not.

+1 vote

The square of 13 is 169.
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This is the square of 14, the next number above 13.
What are the next numbers which also have this property?

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