Multiple Choice Questions on When a number is multiplied by 13 and 13 is added to the product the resultant is divisible by 5 Fin........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

When a number is multiplied by 13 and 13 is added to the product the resultant is divisible by 5 Fin...........

Quantitative Aptitude ( CCS) Number System
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    When a number is multiplied by 13 and 13 is added to the product, the resultant is divisible by 5. Find the smallest number possible?

    85

    Incorrect Answer

    130

    Incorrect Answer

    65

    Correct Answer

    90

    Incorrect Answer
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    Explanation:

    13x + 13 which is divisible by 15,
    or 13(x+1) should be divisible by 5.
    The smallest value of x = 4 to be put here to make it divisible by 5.
    So the number is 13(4+1) = 65

    By: Amit Kumar
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