27. What is the output of the given pseudocode? a = 8; b = 43; if a * b < 10 -> Level 1; elseif a - b < 20 -> Level 2; elseif a - b > 30 -> Level 3; else -> Level 4. What is the output?
Answer: B
Level 2
The output of the pseudocode is Level 2 because the condition `a - b < 20` evaluates to true when a = 8 and b = 43, resulting in the program executing this branch.
A) Level 1
Level 1 is incorrect because the first condition states that `a * b < 10`. Given that a = 8 and b = 43, the product 8 * 43 equals 344, which is much greater than 10, so this condition is false.
B) Level 2
Level 2 is the correct answer. The second condition checks if `a - b < 20`. With a = 8 and b = 43, we find that 8 - 43 equals -35, which is indeed less than 20. Therefore, this condition is true, and Level 2 is the output.
C) Level 3
Level 3 is incorrect because the third condition checks if `a - b > 30`. With a = 8 and b = 43, the result of 8 - 43 is -35, which is not greater than 30, making this condition false.
D) Level 4
Level 4 is also incorrect. This is the default output that applies when none of the previous conditions are satisfied. Since the second condition was true, the pseudocode did not reach this point.
Conclusion
Level 2 is confirmed as the correct output because the condition `a - b < 20` holds true in this scenario. All other options fail due to their respective conditions not being met, demonstrating the logical flow of the pseudocode effectively.