homework on applied problems | linear equations in two variables

homework on applied problems | linear equations in two variables | advguruji

Q1.

The sum of two digit number and the number obtained by reversing the order of its digits is 121, and the two digits differ by 3. Find the number.

Answer. 47 or 74

Q2.

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 digits. Find the number.

Answer. 18

Q3.

When a two digit number and its reverse order digit number are added, the result is 99. The tens digit of the number is greater to the ones digit by 5. Find the number.

Answer. 72

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