Multiple Choice Questions on A number consists of two digits If the digits interchange places and the new number is added to the ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A number consists of two digits If the digits interchange places and the new number is added to the ...........

Quantitative Aptitude ( CCS) Number System
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    A number consists of two digits. If the digits interchange places and the new number is added to the original number, then the resulting number will be divisible by:

    3

    Incorrect Answer

    5

    Incorrect Answer

    9

    Incorrect Answer

    11

    Correct Answer
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    Explanation:

    Let the ten's digit be x and unit's digit be y.

    Then, number = 10x + y.

    Number obtained by interchanging the digits = 10y + x.

    (10x + y) + (10y + x) = 11(x + y), which is divisible by 11.

    Hence, option 4 is the correct answer.

    By: MIRZA SADDAM HUSSAIN
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