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If the number 517324 is completely divisible by 3, then the smallest whole number in the place of will be:

0
1
2
None of these

Correct Answer: 2

Explanation:

Sum of digits = (5 + 1 + 7 + x + 3 + 2 + 4) = (22 + x ), which must be divisible by 3.

∴ x = 2.

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