Question

A tv is sold for $1998 and a 11% profit is made. Find the original cost of the tv.

Answer 1

1998=111%

So,1%=1998/111

So,100%=(1998/111)*100

Solve the rest.

Answer 2

11%cp + cp = 1998 (SP)
1.11cp=1998
cp=1998*100/111
cp=181.63*100 = 18163