2015 · Q19
The value of a single discount on some amount which is equivalent to a series of discounts of 10%, 20% and 40% on the same amount, is equal to
Elementary MathematicsTime, Speed and Distance
- A43-2%
- B50%
- C56.8%
- D70%
Explanation
The successive multipliers are 0.9 x 0.8 x 0.6 = 0.432, so the single equivalent discount is 1 - 0.432 = 56.8%. Hence option (c).