Question

the cost price of 16 books is equal to the selling price of 30 books.find the gain%

Answer 1

Hey mate hope this helps you!

Let The cp of 1 book be X

So,16x=30x

The cp of a book will be,

2x=30/16

2x=1.875

x=1.875/2

x=0.9375

C.P of 16 books is 16 multiplied by 0.9375=15

The S.P of 30 books=15=28.125

Profit=S.P-C.P

=13.125

Answer 2

Answer:

87.5%

Step-by-step explanation:

CP=16

SP=30

Gain=SP-CP=30-16=14

percentage= gain/cp×100= 14/16×100=87.5%