Multiple Choice Questions on The difference between a two digit number and the number obtained by interchanging the positions of ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The difference between a two digit number and the number obtained by interchanging the positions of ...........

Quantitative Aptitude ( CCS) Number System
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    The difference between a two-digit number and the number obtained by interchanging the positions of its digits is 36. What is the difference between the two digits of that number?

    3

    Incorrect Answer

    4

    Correct Answer

    9

    Incorrect Answer

    Can't be determined

    Incorrect Answer
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    Explanation:

    Let the number be 10x+y where both x,y are non zero single digits.

    Reverse of this number = 10y+x.

    Difference of the two numbers = 9(x-y)

    Now, 9(x-y) = 36. so x-y =4.

    Hence, option 2 is the correct answer.

    By: MIRZA SADDAM HUSSAIN
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