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4 September, 05:26

10,534,341 is divisible by

a. 3

b. 9

c. 2

Explain your reasoning for your choice (s).

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Answers (1)
  1. 4 September, 06:57
    0
    a. 3

    Step-by-step explanation:

    We can get to know if a number is divisible by 3 if after adding all the digits of that number we get a number which is completely divisible by 3 or we can say the number appears in the table of 3.

    For example: In the given number if we will add all the digits the we will get 21 and we all know that 21 is divisible by 3.

    10,534,341 = 1 + 0 + 5 + 3 + 4 + 3 + 4 + 1 = 21

    21 = 21/3 = 7

    Other options are incorrect.

    Divisibility rule for 2 : A number is said to be divisible by 2 if it's ones place ends in 0, 2, 4, 6 or 8 i. e. an even number. The given number does not satisfy this condition because it ends in 1 which is an odd number.

    Divisibility rule for 9 : A number is said to be divisible by 9 if after adding all the digits of that number we get a number which is completely divisible by 9. Since the sum total of the given number is 21 which is not completely divisible by 9 we can easily infer that 9 is not the answer for this question.
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