Question

a trader bought a pen for rs x and sold it for rs 16 .if his loss was x%find the cost price of the pen​

Answer 1

Answer:

C.P. - loss= S.P.

x- x*x/100 = 16

100x - x^2 = 1600

solve this and you will get the answer as :-

x=20 or x=80

please mark as brainliest.