Correct Answer - Option 4 : 16.66%
Given∶
An offer, “Buy 5 get 1 free.”
Formula Used∶
Discount = Marked Price – Selling Price
Discount % = (Discount / Marked Price) × 100
Calculation∶
Let the price of article be ‘x’
Number of articles purchased = 5
Total number of articles gets = 5 + 1 = 6
M.P. of 6 articles = 6x
S.P. of 5 articles = 5x
Discount = M.P. – S.P.
⇒ 6x – 5x
⇒ x
Discount % = (Discount / M.P.) × 100
⇒ (x / 6x) × 100
⇒ 16.66%.
∴ The overall discount percentage is 16.66%.