- 2
- 1
- 0
- None of these

Answer: Option 1

Explanation:

Sum of digits = (5 + 1 + 7 + x + 3 + 2 + 4) = (22 + x), which must be divisible by 3. When x = 2.[(22+2)=24 is divisible by 3] Answer is 2

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