AP CSP Day 54: Complex Nested Conditionals

February 3, 2026

Big Idea 3

Day 54 Practice

Focus: Complex Nested Conditionals

Practice Question

What does this code display?

x ← 7
y ← 10
IF (x > 5)
{
    IF (y > 5)
    {
        DISPLAY("A")
    }
    ELSE
    {
        DISPLAY("B")
    }
}
ELSE
{
    DISPLAY("C")
}

Why This Answer?

x > 5 is true (7 > 5), so we enter outer IF. Then y > 5 is true (10 > 5), so we display A.

Why Not the Others?

B) B displays only if x > 5 AND y ≤ 5.

C) C displays only if x ≤ 5.

D) One of the branches always executes.

Common Mistake

Watch Out!

Getting lost in nested IF statements. Trace through outer condition first, then inner conditions.

AP Exam Tip

For nested conditionals: evaluate outer condition first, then trace through only the branch that executes.

Daily practice builds AP CSP mastery.