Multiple Choice Questions on A number 416 1 is divisible by x Which among the following is also divisible by x ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

A number 416 1 is divisible by x Which among the following is also divisible by x ........

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    A number 416 + 1 is divisible by x. Which among the following is also divisible by x?

    496 + 1

    Incorrect Answer

    432 + 1

    Incorrect Answer

    48 + 1

    Incorrect Answer

    448 + 1

    Correct Answer
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    Explanation:

    We know a3 + b3 = (a + b)3 – 3ab(a + b)
    If (a + b) is divisible by x, then a3 + b3 is also divisible by x.
    If 416 + 1 is divisible by x, then (416)3 + 13 is also divisible by x
    Or 448 + 1 is divisible by x

    By: Amit Kumar
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