A shopping mart offers four different discounts schemes on the sale of an object as follows:
(1) A discount of 30%
(2) Two successive discounts of 15%
(3) Buy 2, get 1 free
(4) Buy 5, get 3 free
Which discount scheme offers the maximum discount to a customer?

1.A discount of 30%
2. Two successive discounts of 15%
3. Buy 2, get 1 free
4. Buy 5, get 3 free ​

Discount percentage = $$\frac{\text{Amount saved}}{\text{Original price}} \times 100$$ 

​$$\therefore$$ scheme 4. Buy 5 get 3 free offer the max. discount.​​​