Which of these is a valid pattern to match a number between 10 and 20 inclusive in a Ruby case statement?

easy📝 Conceptual Q2 of 15

Ruby - Control Flow

Which of these is a valid pattern to match a number between 10 and 20 inclusive in a Ruby case statement?

Ain 10...20 then puts 'Matched'

Bwhen 10..20 then puts 'Matched'

Cin 10..20 then puts 'Matched'

Din 10-20 then puts 'Matched'

Step-by-Step Solution

Solution:

Step 1: Identify correct range syntax in Ruby
Ruby uses two dots .. for inclusive ranges, so 10..20 includes 20.
Step 2: Check each option's syntax
in 10..20 then puts 'Matched' uses 10..20 correctly. when 10..20 then puts 'Matched' incorrectly uses when instead of in. in 10-20 then puts 'Matched' uses invalid syntax. in 10...20 then puts 'Matched' uses exclusive range 10...20 which excludes 20.
Final Answer:
in 10..20 then puts 'Matched' -> Option C
Quick Check:
Range syntax with two dots = inclusive range [OK]

Quick Trick: Use two dots for inclusive ranges in patterns [OK]

Common Mistakes:

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