T

Tina Singh • 10.85K Points
Tutor II Math 

Q. Two successive discounts of 20% and 20% are equivalent to a single discount of

  • (A) 42%
  • (B) 40%
  • (C) 36%
  • (D) 34%
Correct Answer - Option(C)
Explanation by: Tina Singh 
Given, r1 = 20% and r2 = 20%
∴ Single discount equal to r1 and r2
= (r1 + r2 - r1 x r2) / 100 %
= (20 + 20 - 20 x 20) / 100
= 40 - 4 = 36%

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