UP Police Constable Exam 18 Feb 2024 Shift 1 Solved Paper

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Question : 7 of 150
 
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A puzzle enthusiast is trying to remember a code to unlock a mysterious box. He recalls the following details :
1. The code starts with 3.
2. The code ends with 729.
3. The second digit is twice the first digit.
4. The third digit is half of the second digit. 
Now, considering these conditions, the enthusiast has narrowed down four potential codes for the mysterious box. Find the suitable one.
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