Find a Four Digit Number, whose-
- Second and Third digits are equal.
- Fourth digit is twice the first digit, and
- 1st and 2nd digits combined is half of 3rd and 4th digits combined.
For example, if the number is xyyz, then we have 2×x=z and 2×xy=yz.
Note: xy is equal to 10x+y. It is not equal to x×y.