Question

A certain number is less than the
number obtained by reversing the
digits by 9. Also the sum of the two
numbers is 77 Find the number​

Answer 1

Step-by-step explanation:

A certain number is less than a number obtained by reversing the digits by 9.Also the sum of the two numbers is 77.Find the number

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Reversing the digits of a 2 digit number changes the value by 9 times the difference between the 2 digits.

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For a change of 9, difference = 1 between 1's and 10's digits.

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T - U = 1

T + U = 7

----------- Add

T = 4

U = 3

Or vice versa.

The number is 34.