Question:
If \( a * b = 3a – b \), find:
\[ (2 * 3) * 4 \]
Options:
- (a) 2
- (b) 3
- (c) 4
- (d) 5
Solution:
Step 1: Compute \( 2 * 3 \)
\[ 2 * 3 = 3(2) – 3 = 6 – 3 = 3 \]
Step 2: Compute \( 3 * 4 \)
\[ 3 * 4 = 3(3) – 4 = 9 – 4 = 5 \]
Final Answer:
\[ \boxed{5} \]
Correct Option: (d)