Car and a weird nmber
A car's license plate consists of 4 digits in the following manner:
1) The last digit is twice that of first digit.
2) The second and third digits are the same.
3) Last two digits are twice that of the first two digits( for eg: if last two digits are 44, then the first two numbers are 22).
Identify the number of the car.
The answer is 4998.
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Because the last two digits are the double of first two digits, its impossible for first digit is 5 or more since if its doubled must be more than 100 (more than 2 digits).
If the 1st digit is 1, the 3rd digit must be 2 or 3, but 1224 and 1332 aren't the answer.
If the 1st digit is 2, the 3rd digit must be 4 or 5, but 2448 and 2550 aren't the answer.
If the 1st digit is 3, the 3rd digit must be 6 or 7, but 3662 and 3774 aren't the answer.
If the 1st digit is 4, the 3rd digit must be 8 or 9. 4888 and 4998. Giving 4998 as the correct answer.
If the 1st digit is 0, the 3rd digit must be 0 or 1. 0110 isn't the answer. 0000 I don't know, I try 4998 and solved it.