The price of watch including 10% VAT is Rs. 825. What is its basic price?

VAT = 10%

Selling Price = Rs.825

Let × be the base price.

Vat Amount = 10% of x

= x/10

Base Price + VAT = Selling Price

× + x/10 = 825

11x/10 = 825

× = (825 × 10) / 11

= Rs.750