Armed Forces Classification Test (AFCT) Arithmetic Reasoning Practice Test 2026 - Free AFCT Practice Questions and Study Guide

To determine how much cake is left after eating 25% of the original amount, start with the full amount, which is 100% of the cake. Since you have 75% of the cake remaining, eating 25% of the original cake does not affect the remaining portion directly.

Here’s the calculation:

- You begin with 75% of the cake.

- When you eat 25% of the whole (original) cake, you should consider that 25% of 100% (the original whole) is equal to 25%.

Subtracting the portion you ate from the remaining portion gives:

75% (remaining) - 25% (eaten) = 50%.

Thus, after consuming 25% of the cake, 50% remains, making this the correct amount left. This reasoning provides a clear understanding of how percentages interact when portions of a whole are considered.