Question : Three successive discounts of 12%, 13% and 11% are equivalent to an approximate single discount of:
Option 1: 40%
Option 2: 32%
Option 3: 35%
Option 4: 42%
Correct Answer: 32%
Solution : Successive discount = $x + y -\frac{ (x × y)}{100}$ For 12% and 13%, equivalent discount % = $12 + 13 - \frac{(12 × 13)}{100}$ = 25 – 1.56 = 23.44% Again, for 23.44% and 11%, equivalent discount % = $23.44 + 11 - \frac{(23.44 × 11)}{100}$ = 34.44 – 2.5784 = 31.86% = 32% (approximate) Hence, the correct answer is 32%.
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Question : A single discount equivalent to three successive discounts of 8%, 15% and 12% is:
Option 1: 17.5%
Option 2: 68.816%
Option 4: 31.184%
Question : Three successive discounts 22%, 17% and 11% are equivalent to a single discount of:
Option 1: approximately 42%
Option 2: approximately 25%
Option 3: approximately 50%
Option 4: approximately 45%
Question : A single discount equivalent to three successive discounts of 6%, 15% and 14% is:
Option 2: 31.286%
Option 3: 68.714%
Option 4: 34.357%
Question : Two successive discounts of 30% and 20% are equivalent to a single discount of:
Option 1: 44%
Option 2: 52%
Option 3: 45%
Option 4: 50%
Question : What will be the net discount (in percentage) after the two successive discounts of 40% and 20%?
Option 1: 60%
Option 2: 68%
Option 3: 52%
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