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Possibility of two digit no whose sum is 9

18,27,36,45,54,63,72,91

Now add 9 to each no mentioned above

27,36,45,54,63,72,91,100

See after third comma 45 and 54. If you reverse 45 it will be 54. which is 9 more than 45. So original no is 45

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45

Q: The sum of the digits of a two digit number is 9 If the digits were reversed the new number would be 9 more than the original number Find the original number?

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The number is 36

47 Impossible problem!

If the number with the digits reversed can have a leading 0 so that it is a 1-digit number, then 16. Otherwise 13.

Possibility of two digit no whose sum is 11 Are 29,38,47,56,65,74,83,92 Subract 45 to each no mentioned above -16,-7,2,11,20,29,38,47 See after 6th comma 83 and 38 Reverse of 83 is 38. The no 38 is 45 less than 83. Original no is=83

Since there are only five different digits, a 6-digit number can only be generated if a digit can be repeated. If digits can be repeated, the smallest 6-digit number is 111111.

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17

The number is 36

47 Impossible problem!

Find a four digit number whose digits will be reversed when multiplied by nine?

192

Possibility of two digit no whose sum is 17 89 and 98 Reverse of 89 is 98. 98 is 9 less than the original no 89. 89 is original no

If the number with the digits reversed can have a leading 0 so that it is a 1-digit number, then 16. Otherwise 13.

"If the units digit and the hundreds digit of the number 513 were reversed..." 315 'find the sum of the original number and the new number." 513+315=828

45

An eight digit number with one zero cannot remain the same when its digits are reversed. It must have an even number of 0s.

A) If a number has two digits, then the sum of its digits is less than the value of the original two-digit number.

100000 2847239582