Question

a cell phone is available for rupees 8800 inclusive of sales tax if sale tax is 10% find the listed price of the cell phone

Answer 1

8800 = 100% + 10%=110 %
8800 = 110%
10 % = 800
8800 - 800 = 8000

Answer 2

According to your question,the sales tax is included.
That means it is => x + 10% of x = 8,800
x + 10x/100 = 8,800
x + 1x/10 = 8,800
(10x + 1x)/10 = 8,800
11x = 88,000
x = 88,000/11 = 8,000