Ruby, value bucketing, beautify code

Question

So I have this code:

def self.age_to_bucket(age)
  age = age.to_i

  if age >= 0 && age <= 12
    1
  elsif age >= 13 && age <= 17
          


        

Answer 1

irb(main):010:0> a = {1 => 0..12, 2 => 13..17} # insert other values here
=> {1=>0..12, 2=>13..17}
irb(main):011:0> age = 16
=> 16
irb(main):012:0> a.keys.find {|k| a[k].include?(age) }
=> 2