Question

if a book is sold at rs 480,the gain is 20 percent.at what price should it be sold for the gain to be 30 percent.solve it in paper

Answer 1

This is the required answer.
Hope this helps you.

Answer 2

Answer:

S.P = 520

Step-by-step explanation:

Given ,

S.P = rs 480 , gain = 20 %

To find C.P =  ( 100 / 100+ Gain % ) * S.P

                   =   (100 / 100 + 20 ) * 480

                  C.P = 400

So , To find  S.P  for given gain % = 40 ,

         S.P = ( 100+ Gain % / 100  )* C.P

               = (100 + 30 / 100 ) * 400

             S. P  = 520