With the digits 1, 4, 5 and 6, you must make 24, using the following rules:

• each digit must be used exactly once;
• the allowed operations are addition, subtraction, multiplication, and division (note: exponentiation is therefore not allowed!);
• digits may not be concatenated (so, for example, it is not allowed to use 1 and 4 as 14);
• brackets are allowed.

The question: Give the two solutions to this problem.

The answer: Click here!