How can you modify this class to add an instance method age_in_months that returns the age in months?

hard📝 Application Q9 of 15

Ruby - Classes and Objects

How can you modify this class to add an instance method age_in_months that returns the age in months?

class Person
  def initialize(age)
    @age = age
  end
end

Adef age_in_months; @age * 12; end

Bdef age_in_months; age * 12; end

Cdef age_in_months; @age / 12; end

Ddef age_in_months; return age * 12; end

Step-by-Step Solution

Solution:

Step 1: Use instance variable @age
The age is stored in @age, so use it inside the method.
Step 2: Multiply by 12 to get months
Multiply the age in years by 12 to convert to months.
Final Answer:
def age_in_months; @age * 12; end -> Option A
Quick Check:
Use @age and multiply by 12 for months [OK]

Quick Trick: Instance variables start with @ and hold object data [OK]

Common Mistakes:

Master "Classes and Objects" in Ruby

9 interactive learning modes - each teaches the same concept differently

Want More Practice?

15+ quiz questions · All difficulty levels · Free

More Ruby Quizzes