updated.rb

def adult_in_group?(people)
    people.each do |arr|
        arr.each do |key, value|
        if(!(key.kind_of?(String)))
        if(value >= 18) 
            return true
        end
    end
    end
    end
    return false
end 

def adult_in_group?(people)
people.each do |arr|
arr.each do |key, value|
# if(!(value.kind_of?(String)))
if(arr[:age] >= 18)
return true
# end
end
end
end
return false
end