Question

A storekeeper sells a book at 15% gain; Had he sold it for 18 more; he would have gained 18%. Find the cost price of the book.​

Answer 1

Answer

Rs 600

Step-by-step explanation:

let the cost price of the book be x

selling it at 15% gain means selling price is (115*x)/110

selling it at 18% gain means selling price is (118*x)/110

difference between the two selling price is 18

hence

=>(118*x)/110-(115*x)/110=18

=> 3*x/100=18

=>x=18*100/3

=>x=600

hence cost price of the book is Rs 600.

Answer 2

Answer:

600

Step-by-step explanation:

if he sold for 18 more then he would get 18% means 3% more..

that means 18 is equals to 3% so ... 6 will be equals to 1%

by multyplying by 100.. the cp will be 600