[Q]: Which of the following solutions is better for the following goal:
To cut a can open, you can

[A]: Use a razor blade

[Q]: Which of the following solutions is better for the following goal:
How do you find the mean?

[A]: The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.

[Q]: Which of the following solutions is better for the following goal:
Chef's knife

[A]: peeling watermelon quickly

[Q]: Which of the following solutions is better for the following goal:
To install a program on your computer.

[A]:
On your browser, search for the program and click download then click to install.