Some one asked a maths teacher’s car number

As usually the maths teacher answered in a tricky way like following:

4th digit is double the 1st digit

3rd digit and 2nd digit are the same..

Doubling first 2 digits gives u next 2 digits.

What is the car number..?

4998

1224

Wrong answer.

4th digit is double of 1st digit : this condition is not satisfying ðŸ™‚