Question

If the s.p of 8 articles is equal to the c.p of 10 articles. find the loss or gain percentage?

Answer 1

we are given  8 * SP =  10 * CP
   SP = 10/8 * CP = 125/100  * CP
  profit  =  SP - CP   =  25/100 * CP

profit percentage =  100 * (SP - CP)/CP =  25 %