What will be the output of this Ruby code?

medium📝 Predict Output Q5 of 15

Ruby - Loops and Iteration

count = 5
until count <= 0 do
  puts count
  count -= 2
end

A5 4 3 2 1 0

B5 3 1 -1

C5 3 1

DNo output (infinite loop)

Step-by-Step Solution

Solution:

Step 1: Trace loop values
count starts at 5; loop runs until count <= 0. Prints 5, then count becomes 3, prints 3, count becomes 1, prints 1, count becomes -1, condition count <= 0 is true, loop stops before printing -1.
Step 2: Confirm output
Printed values are 5, 3, 1 only.
Final Answer:
Output is 5, 3, 1 each on its own line -> Option C
Quick Check:
Until loop decrement output = C [OK]

Quick Trick: Until stops only when condition true exactly [OK]

Common Mistakes:

Master "Loops and Iteration" in Ruby

9 interactive learning modes - each teaches the same concept differently

Want More Practice?

15+ quiz questions · All difficulty levels · Free

More Ruby Quizzes