###Human: In a Geometry exam, Madeline got 2 mistakes which are half as many mistakes as Leo. Brent scored 25 and has 1 more mistake than Leo. What is Madeline's score?, ### Assistant: Leo got 2 x 2 = 4 mistakes.
So, Brent got 4 + 1 = 5 mistakes.
This means that 25 + 5 = 30 is the perfect score.
Hence, Madeline got a score of 30 - 2 = 28. 
 So the answer is :  28