Question

Evaluate the given postfix expression:
Expression: 3 5 * 6 2 + 3 -

• A. 39
• B. -9
• C. 15
• D. -17

Answer 1

The Correct Option is C

The evaluation of the postfix expression 3 5 * 6 + 2 3 * - results in 15.

Additional Context:

• Step-by-Step Evaluation:
  1. Push 3, push 5 → Stack: [3, 5]
  2. Apply * → 3*5=15 → Stack: [15]
  3. Push 6 → Stack: [15, 6]
  4. Apply + → 15+6=21 → Stack: [21]
  5. Push 2, push 3 → Stack: [21, 2, 3]
  6. Apply * → 2*3=6 → Stack: [21, 6]
  7. Apply - → 21-6=15 → Final result

Correct Answer: (3) 15.