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A single discount equivalent to the discount series of 20%, 10% and 5% is?

Question 1:

A single discount equivalent to the discount series of 20%, 10% and 5% is?

A. 25%

B. 30%

C. 31.6%

Feedback 100*(80/100)*(90/100)*(95/100) = 68.4
100 - 68.4 = 31.6.

D. 33.5%

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10 questions