What is the outcome of 30-1?

To determine the outcome of the operation 30 - 1, you begin with the number 30 and then subtract 1 from it. When you take away 1 from 30, you are essentially finding what remains after reducing the total by that amount.

Carrying out the subtraction:

30 - 1 = 29

Therefore, the correct result of this operation is 29. This solution illustrates the basic principle of subtraction, where you start with a specific quantity and decrease it by another quantity to find a new total. In this case, since 29 is the number that represents the total after reducing 30 by 1, it is the correct answer to the question.