Question 1 of 190

Liam attended a American Maths Olympiad (AMO). Liam answered all 27 questions. For each correct answer, Liam will get 2 marks. However, for each wrong answer, Liam will be deducted by 1 mark(s). If Liam scored 24 marks in total, how many questions did Liam answer wrongly?

A
19
B
12
C
10
D
15