The price includes the VAT, i.e., the value added tax. Thus, a $$10 \\%$$ VAT means if the price without VAT is ₹ 100 then price including VAT is ₹ 110 .Now, when price including VAT is $$₹ 110$$, original price is $$₹ 100$$.Hence when price including tax is $$₹ 3300$$, the original price $$=₹ \\frac{100}{110} \ imes 3300=₹ 3000$$.