Question

if cost prize of 25 books is equal to selling prize of 20 books.calculate gain percent?

Answer 1

Hey there!

cp × 25 = sp × 20

sp/cp = 5/4

gain % =( sp - cp / cp ) ( 100 )

=( sp / cp - 1 ) ( 100 )

= 5/4 - 1

= 1/4 ( 100 )

Profi % = 25%

Hope my answer helps!