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Q.

A single discount is equal to discount series of  10% and 20% is: 


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a

25%

b

3.2%

c

3.63%

d

28%

answer is D.

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Detailed Solution

Concept- If p is a single discount in a discount series of Question ImageThen Question Image, As a result of the question, you will get an individual discount for the 10% discount series  and 20% , Using the formula above, you can see the individual discounts for the 10% discount series. and 20%.
Explanation:
You can use this formula to determine individual discounts for a particular discount series.  From the question, it's clear that you need to find a 10% discount range.  And 20%  If p is a single discount in a discount series of Question Imageafter that
Question ImageHence, the correct answer is option (4).
 
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