In a 2-digit number, sum of digits is 7

In a 2-digit number, sum of digits is 7. If the difference of 2 digit number and number obtained by reversing the digits is 9, then find the number.

Solution:

In a 3 digit number, the difference of hundred’s digit and unit’s digit is 5. Find the quotient when difference of 3-digit number and number obtained by reversing the digits is divided by 9.

Solution:

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