Rajan bought a watch for Z 1870 including VAT at 10%. Find the original price of the watch.
VAT = 10%
Selling Price = Rs.1870
Let × be the base price.
Vat Amount = 10% of x
= x/10
Base Price + VAT = Selling Price
× + x/10 = 1870
11x/10 = 1870
× = (1870 × 10) / 11
= Rs.1700
So, Cost Price of watch is Rs.1700