Case with ranges and patterns in Ruby - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to match the variable 'score' with the correct range in the case statement.

Ruby

score = 75
case score
when [1]
  puts "Passed"
else
  puts "Failed"
end

Drag options to blanks, or click blank then click option'

A0..49

B51..74

C100..150

D50..100

Attempts:

3 left

💡 Hint

Common Mistakes

Using a range that does not include 75, like 0..49.

The range 50..100 correctly matches scores that are passing (including 75).

2fill in blank

medium

Complete the code to print the correct message for the variable 'age' using a case statement with ranges.

Ruby

age = 20
case age
when [1]
  puts "Teenager"
when 20..29
  puts "Twenties"
else
  puts "Other age"
end

Drag options to blanks, or click blank then click option'

A0..12

B13..19

C10..15

D30..39

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing a range that does not cover all teenage years.

The range 13..19 correctly matches teenagers.

3fill in blank

hard

Fix the error in the case statement to correctly match the variable 'grade' with letter grades.

Ruby

grade = 'B'
case grade
when [1]
  puts "Excellent"
when 'B'
  puts "Good"
else
  puts "Needs Improvement"
end

Drag options to blanks, or click blank then click option'

A'A'

BA

C"A"

D:A

Attempts:

3 left

💡 Hint

Common Mistakes

Using unquoted letters which cause errors.

The case statement matches strings, so the letter grade must be in quotes like 'A'.

4fill in blank

hard

Fill both blanks to create a case statement that matches 'temperature' with descriptive ranges.

Ruby

temperature = 15
case temperature
when [1]
  puts "Cold"
when [2]
  puts "Warm"
else
  puts "Hot"
end

Drag options to blanks, or click blank then click option'

A0..10

B11..20

C21..30

D31..40

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the ranges or using overlapping ranges.

The range 0..10 matches cold temperatures, and 11..20 matches warm temperatures.

5fill in blank

hard

Fill both blanks to create a case statement that matches 'day' with weekdays and weekends.

Ruby

day = 'Saturday'
case day
when [1]
  puts "Weekday"
when [2]
  puts "Weekend"
else
  puts "Invalid day"
end

Drag options to blanks, or click blank then click option'

A/Monday|Tuesday|Wednesday|Thursday|Friday/

B/Saturday|Sunday/

C"Saturday"

D"Monday"

Attempts:

3 left

💡 Hint

Common Mistakes

Using single strings instead of regex patterns for multiple days.

The regex pattern /Monday|Tuesday|Wednesday|Thursday|Friday/ matches weekdays, and /Saturday|Sunday/ matches weekends.