The Riddle of the Digits

Riddle:

A number has four digits. The first digit is one-fourth of the last, the second is six times the first, and the third is the second plus three. What is the number?

Answer:

Answer: 1864. Explanation: Let the digits be A B C D. Based on the clues: A = D/4, B = 6A, C = B + 3. Solving step by step, the only values that satisfy all conditions are A=1, B=6, C=9, D=4. That gives the number 1864.