If the selling price of five Bluetooth devices is ₹14,430 after allowing a discount of 26% on the marked price, then the marked price of one device is:

Correct option is B

Given:

Selling price of 5 Bluetooth devices = ₹14430 after a discount of 26%. 

Formula Used: 

Total marked price = $$\frac{Total \ selling \ price }{(1 - Discount \%)}$$

Solution:

Calculate the total marked price before discount.​​

Total marked price = $$\frac{₹14430 }{ (1 - \frac{26}{100})} = ₹19500.00$$​​

Marked price of one device = $$\text{Total marked price} \div \text{Number of devices} = \frac{₹19500}{5} = ₹3900$$​​