SOLUTION: The marked price of a pillow is $240. The shop makes a profit of 28% by selling the pillow at a discount of 20%. 1. Find the cost price of the pillow. 2. If the pillow is sold at t

Let x be the cost price of the pillow.


The shop sold the pillow at 240*0.8 = 192 dollars.


The profit was 28%.  It means that 


    192 - x = 0.28x,

or

    192 = 0.28x + x = 1.28x.


Hence,  x =  = 150.


ANSWER.  The cost price (the buying price) of the pillow was 150  dollars.