Question
Download Solution PDFThe sum of digits of a two digit number is 8 and the difference between the number and that formed by reversing the digits is 18. What is the difference between the digits of the number?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept Used:
Two digit number can be written as 10x + y
Where x = Digit at the unit place,y = Digit at the tens place
Calculation:
No. formed by reversing digits = 10y + x
⇒ (10x + y) - (10y + x) = 18
⇒ 9x - 9y = 18
⇒ 9(x - y) = 18
⇒ x - y = 2
Now we got the digit's difference = 2
∴ The correct answer is 2
Last updated on Jun 26, 2025
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