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What is the effective discount per cent (rounded off to 2 decimal places) if a shopkeeper offers a scheme, “buy five and get one free”?
Question

What is the effective discount per cent (rounded off to 2 decimal places) if a shopkeeper offers a scheme, “buy five and get one free”?

A.

16.33%

B.

24.67%

C.

24.33%

D.

16.67%

Correct option is D

Given:
One free article is offered on buying 5 article
Formula Used:
Discount percentage =DiscountMP\frac{Discount}{MP}​×100
Solution:
let the price of one article be x
As per the given question:
MP = 6x
Discount = 1x
Discount percentage = 1x6x×100=16.66..16.67%\frac{1x}{6x}×100= 16.66.. ≈ 16.67 \%​​
Alternate Method:
If one free article is offered on buying 5 article
Then; MP should be 6 unit and discount = 1 unit
Discount% = 16×100=16.66..16.67%\frac{1}{6}×100=16.66.. ≈ 16.67\%

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