Two digit no possibility whose sum is 12 = 39,48,57,66,75,84,93
See the difference of above no with 54
1.39-54=-15
2.48-54=-6
3.57-54=3
4.66-54=12
5.75-54=21
6.84-54=30
7.93-54=39
The last no 7 mentioned shows 93 is the ans because if you reverse it 39 will come it 54 less than 93. And=93
100000 2847239582
2178
5037 = 248 = 3059
81.
7 two-digit numbers.
Find a four digit number whose digits will be reversed when multiplied by nine?
If the number with the digits reversed can have a leading 0 so that it is a 1-digit number, then 16. Otherwise 13.
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.
17
100000 2847239582
2178
The number is 36
47 Impossible problem!
2178 * 4 = 8712
86420
192