counting number between 50 and 75
7 is a counting number. But I am not sure what a counting number number is!
If the number with the digits reversed can have a leading 0 so that it is a 1-digit number, then 16. Otherwise 13.
five digits number when you multiply by four is the same the number when you reversed it is 21978*4 = 87912
The minimum number of years that can pass before the double digits in someone's age can be reversed is 12.
An eight digit number with one zero cannot remain the same when its digits are reversed. It must have an even number of 0s.
Find a four digit number whose digits will be reversed when multiplied by nine?
The no. is 35.
93 (and 39).
The original number would be 28. Swapped around, the number's digits are 82. The difference between the two numbers is 54.