Question :  A shopkeeper offers the following two discount schemes.
A) Two successive discounts of 10% and 15%
B) Buy 5 get 2 free.
Which scheme has the maximum discount percentage?
Option 1: B does not give any discount
Option 2: B
Option 3: A and B both have the same discount percentage
Option 4: A
Correct Answer: B
 
  Solution :
 
 For the first condition,
 
  We know that two successive discounts of $a$% and $b$% are equivalent to $(a+b-\frac{a×b}{100})\%$
  
  So, two successive discounts of 10% and 15% are equivalent to,
  
  $(10+15-\frac{10×15}{100})=23.5$%
  
  For the second condition,
  
  So, discount = $\frac{7-5}{7}×100=28.57$%
  
  So, the scheme which has the maximum discount is B.
  
  Hence, the correct answer is B.
 
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