A shopkeeper offers the following three schemes.
Scheme-I: Two successive discounts of 15% and 25%
Scheme-II: Buy 5, get 3 free
Scheme-III: Buy 4 , get 6
Which scheme is the best for customers?
Answer & explanation
Correct answer: option 2
Scheme I. Two successive discounts of 15% and 25%
So, effective discount for scheme I is = 15 + 25 - \(\frac{15 × 25}{100}\) = 36.25%
Scheme II. Buy 5 get 3 free
So, effective discount for scheme II is = \(\frac{(Article \; get \; free)}{(Total \; articles)}\) × 100 = \(\frac{(3)}{(5 + 3)}\) × 100 = 37.5%
Scheme III. Buy 4 get 6
So, effective discount for scheme III is =\(\frac{(Article \; get \; free)}{(Total \; articles)}\) × 100 = \(\frac{(6)}{(10)}\) × 100 = 60%
So, answer is Scheme III.