Thursday, 16 January 2014

Question of the Day No. 12


Find single discount equivalent to successive discounts of 20% & 10%

a) 27%      b) 30%     c) 10%    d) 15%    e) 28% 

Answers and Explanations are welcome in comments

The Correct Answer will be Given Tomorrow
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2 comments:

  1. Unknown16 January 2014 at 06:05

    e) 28%
    -x-y+xy/100

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  2. Unknown16 January 2014 at 22:47

    Correct Answer is : 28%
    Explanation : There is a formula to Solve to Single Discount Equivalents {a+b+(ab/100)}

    Use Discount as Negative. Because Discount decreases the prices so we have to use it in negative signs.

    {-20-10+(200/100)}
    {-30+2}
    -28%

    So Single Discount equivalent is 28%

    ReplyDelete

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