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With an offer of “Buy 4 Get 1 free”, find the net discount percentage given by the salesman.


1. 20%
2. 15%
3. 10%
4. 12.5%

1 Answer

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Correct Answer - Option 1 : 20%

Given:

An offer of “Buy 4 Get 1 free” is given.

Concepts used:

M.P. = S.P. + Discount

Discount % = Discount/M.P. × 100

Calculation:

Let M.P. of 1 good be Rs. x.

M.P. of 5 goods = 5x

Discount on 5 goods = Rs. x

⇒ Discount on 1 good = Rs. x/5

⇒ Net discount % = {(x/5)/x} × 100 = 20%

Net discount is equal to 20%. 

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