FaisalFehad

def upcase_words(words)
  puts "#{words}".upcase
end

def downcase_words(words)
  puts "#{words}".downcase
end

downcase_words("hEllo My DeAr")

FaisalFehad

puts "hEllo My DeAr".upcase
puts "hEllo My DeAr".downcase

FaisalFehad

# A method that takes one array of any size as an argument and prints faild when the average total grades is 50 or more and pass when its less than 50

def calculate(grades)
  # countes the number of objects in the array and assign it to subjects varible to use it latter for calculating the average
  subjects = grades.count
  # sums all of the array objects and assign them to the varible sum
  sum = grades.inject(:+)
  # compares sum with the passing grade and prints the resuts
  if sum / subjects >= 50
    puts "Faild"

FaisalFehad

# an empty array to store the grades
grades = []

# variables for the passing grade and the total number of subjects. You can change them from here.
pass_grade = 50
subjects = 7

# loops until reaches the the number of subjects on the subjects variable
  while grades.count < subjects
    # prints the message