What will be the output of this Ruby code?

medium📝 Predict Output Q13 of 15

Ruby - Loops and Iteration

3.times { |i| puts i * 2 }

A0 2 4

B1 2 3

C2 4 6

D0 1 2

Step-by-Step Solution

Solution:

Step 1: Understand the iteration count and block variable
The 3.times runs the block 3 times with i values 0, 1, 2.
Step 2: Calculate the output for each iteration
Each iteration prints i * 2: 0*2=0, 1*2=2, 2*2=4.
Final Answer:
0 2 4 -> Option A
Quick Check:
Multiply index by 2 = 0, 2, 4 [OK]

Quick Trick: Multiply block index by 2 to get output [OK]

Common Mistakes:

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