shyam purchased a washing machine for rs. 6600 including 10% VAT. find the price of machine before VAT was added

Let the price before VAT be x

Then, x+(x*10/100) = Rs 6600

x+x/10 = Rs 6600

11x/10 = Rs 6600

x =6600*10/11 = Rs6000

Thus the price before VAT is Rs 6000