calc_method

calc_method.rb

# 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"
  else
    puts "Passed"
  end
end


# tests


calculate([20, 43, 5, 49, 32, 38, 22]) # passed

calculate([87, 95, 85, 77, 60, 100, 74]) # faild

calculate([88, 90]) # faild

calculate([20, 40, 49]) # passed

calculate([50]) # faild


# output
[faisal@X260 ruby]$ ruby calc_method.rb 
Passed
Faild
Faild
Passed
Faild
[faisal@X260 ruby]$