Question

the market price of a computer 22000after allowing 10% discount in dealer still make a
profit of 20% find the cost price of a computers

Answer 1

Let, the C.P. be 'x'

Profit = (x*10/100)

         = x/10

S.P. = (x+x/10)

      = (10x+x)/10

      = 11x/10

By condition,

11x/10 = 22000 - (22000*20/100)

or, 11x/10 = 22000 - 4400

or, 11x/10 = 17600

or, x = (17600*10/11)

or, x = (1600*10)

or, x = 16000.

So, the cost price of the computer is 16000.