The digits of a positive integer having three digits are in AP and their sum is 15. The number obtained by reversing the digits is 594 less then the original number. Find the number.

The digits of a positive integer, having three digits, are in A.P. and their sum is 15. The number obtained by reversing the digits is 594 less than the original number. Find the number.

A number consists of two digits.Sum of its digits is 15.If the place of digits are interchanged then the number so obtained is 9 less than the original number. Find the original number.

Form the pair of linear equations in the following problems, and find their solutions (if they exist) by the elimination method : The sum of the digits of a two-digit number is 9. Also, nine times this number is twice the number obtained by reversing the order of the number. Find the number.

The total number of 4-digit numbers is

Sum of the digits of a two-digit number is 9. When we interchange the digits, it is found that the resulting new number is greater than the original number by 27. What is the two-digit number?