Sunday, 26 January 2014

Question of the Day No. 23

A single discount equivalent to successive discounts of 20%, 10% and 5% is ?

a) 35%    b) 33%    c) 31.6%    d) 36.1%    e) 25%
Answers and Explanations are welcome in comments
The Correct Answer will be Given Tomorrow

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1 comment:

  1. Unknown28 January 2014 at 04:26

    Correct Answer is 31.6
    Explanation : Single Discount Series Question can be solved by Simple Formulas

    If Discounts are two times then
    -a-b+ab/100
    If Discounts are three times then
    -a-b-c+(ab+bc+ca/100)-(abc/10000)

    -20-10-5+(200+100+50/100)-(1000/10000)

    -35+3.5-.1 = -31.6
    So Single Discount equivalent is 31.6

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