# If the selling price of 16 water bottles is equal to the cost price of 17 water bottles, find the gain percent earned by the dealer.

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If the selling price of 16 water bottles is equal to the cost price of 17 water bottles, find the gain percent earned by the dealer.
1. $2\dfrac{1}{4}\%$
2. $1\dfrac{1}{4}\%$
3. $6\dfrac{1}{4}\%$
4. $3\dfrac{1}{4}\%$

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Correct Answer - Option 3 : $6\dfrac{1}{4}\%$

Given:

The selling price of 16 water bottles is equal to the cost price of 17 water bottles

Formula used:

Profit% = (Profit/C.P.) × 100

Calculation:

Let the C.P. of each water bottles be x

Then C.P. of 17 water bottles = 17x

According to the question, we have

S.P. of 16 water bottles = 17x

So, profit = C.P. of one water bottle = x

According to the formula, we have

Profit% = (x/16x) × 100 = 100/16 = $6\dfrac{1}{4}\%$

∴ The required profit percent is $6\dfrac{1}{4}\%$.