- 37.5%
- 30.5%
- 27.5%
- 25.5%

Option 1 : 37.5%

**Given:**

The ratio of the cost price and the selling price = 8 : 5

**Formula used:**

Profit % = [(SP - CP)/CP] × 100%

Where, SP = Selling price, CP = Cost price

**Calculation:**

Let the cost price (C.P.) and selling price (S.P.) of the article be 8x and 5x respectively.

According to the question,

Profit % = [(8x - 5x)/8x] × 100%

Profit % = (3x/8x) × 100 = 37.5%

**∴ The profit percent is 37.5%.**

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