[Solved] Identify the error in this Ruby code: def positive?(num) if num > 0 true else false end end puts positive?("5") | Ruby

Ruby - Methods

Identify the error in this Ruby code:

def positive?(num)
  if num > 0
    true
  else
    false
  end
end

puts positive?("5")

AArgumentError because "5" is a string, not a number

BSyntaxError due to missing end

CNo error, outputs true

DReturns nil instead of true/false

Step-by-Step Solution

Solution:

Step 1: Analyze method input and comparison
The method compares num > 0, but "5" is a string, not a number.
Step 2: Understand Ruby type comparison
Comparing string "5" with integer 0 causes an ArgumentError at runtime.
Final Answer:
ArgumentError because "5" is a string, not a number -> Option A
Quick Check:
Comparing string and integer causes ArgumentError [OK]

Quick Trick: Check input types before numeric comparisons [OK]

Common Mistakes:

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