A thief hides out in one of the 45 motel rooms listed in the chart below. The motel’s in-house detective received a sheet of four clues, signed “The Holiday Thief.” Using the clues below, the detective found the room number within 15 minutes—but by that time, the thief had fled. Can you find the thief faster? CHART
51-52-53-54-55-56-57-58-59

41-42-43-44-45-46-47-48-49

31-32-33-34-35-36-37-38-39

21-22-23-24-25-26-27-28-29

11-12-13-14-15-16-17-18-19
1.the sum of the two digits is greater than 7
2. the second digit is more than double the first digit
3. the first digit is divisible by 2
4. the second digit is divisible by 4

hint: I solved it in less than a minute, and it took a detective 15 minutes to solve