If a customer has to choose from the schemes of sells having four options 1)Buy 11 and get 5 free 2)Buy 13 and get 6 free 3)Buy 7 and get 3 free 4) Buy 9 and get 4 free.
Which one be the more beneficial to the customer ?

• For customer
  
  2)Buy 13 and get 6 free
  
  is most beneficial.
  as he gets each item at 68.42% of printed/marked price whereas in other cases relative price is higher.
• 12 years agoHelpfull: Yes(2) No(0)
• comparing 11/16, 13/19, 7/10, 9/13
  we find that 13/19 is lowest.
• 12 years agoHelpfull: Yes(2) No(0)
• 2)Buy 13 and get 6 free will be the more beneficial to the customer.
  
  
  
• 12 years agoHelpfull: Yes(2) No(0)
• 3) buy 7 and get 3 free.
  reason: cost per each will be small compared to other 3
• 12 years agoHelpfull: Yes(0) No(3)