What is the output of this Ruby code?

medium📝 Predict Output Q4 of 15

Ruby - Loops and Iteration

result = []
3.upto(5) { |i| result << i * 2 }
puts result.join(",")

A3,4,5

B6,8,10

C3,6,9

D5,4,3

Step-by-Step Solution

Solution:

Step 1: Trace the loop from 3 upto 5
The loop variable i takes values 3, 4, and 5.
Step 2: Calculate and store values
Each i is multiplied by 2 and added to result: 6, 8, 10.
Final Answer:
6,8,10 -> Option B
Quick Check:
Loop multiplies each number by 2 = B [OK]

Quick Trick: Multiply inside block to transform values [OK]

Common Mistakes:

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