A shopkeeper purchases an audio system for Rs.3,000 and sells it off at a again of 15%. He also charges a sales of tax of 10% on the selling price. Calculate the amount that the buyer will pay to the shopkeeper.
CP of audio system =Rs.3,000
Profit =15%
Therefore, SP of audio system =100+15%100×CP
=115%100×3000
=Rs.3450
Final SP including tax =3450+3450×10%
=3450+345
=Rs.3795