DIGITS = 10q + p
DIFFERENCE = 10p + q 10q p
Difference = 9p 9Q = 9 (p q)
HENCE, the difference is always
exactly divisible by 9.

"> DIGITS = 10q + p
DIFFERENCE = 10p + q 10q p
Difference = 9p 9Q = 9 (p q)
HENCE, the difference is always
exactly divisible by 9.

">
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The difference of a number consisting of two digits from the number formed by interchanging the digits is always divisible by

Aptitude Number System in Aptitude . 3 years ago

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Let the number be 10p + q
where q < p.
Number obtained by interchanging the DIGITS = 10q + p
DIFFERENCE = 10p + q 10q p
Difference = 9p 9Q = 9 (p q)
HENCE, the difference is always
exactly divisible by 9.

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Posted on 20 Mar 2022, this text provides information on Aptitude related to Number System in Aptitude. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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