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Multiple Choice Questions

The sum of the digits of a two digit number is 8 the difference between these numbers and the number...........

Quantitative Aptitude (CUET) Algebra

The sum of the digits of a two digit number is 8. the difference between these numbers and the number obtained by reversing it is 18. find the two digit number.

Explanation:

Let the number be xy = 10x + y
x + y = 8 …….(i)
(10x + y) – (10y + x) = 18
9x – 9y = 18
x – y = 2 …..(ii);
Solving equation (i) & (ii)
x = 5, y = 3.
So, the number is 53.

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