Question

The cost price of 36 books is equal to the selling price of 30 books. The gain percent is

Answer 1

let the SP of 1 book is rs 1

the SP of 36 books is rs 36

the cp of 1 books = rs 1

the cp of 30 books is rs 30

SP > cp

gain = SP - CP

gain = 36 - 30

gain = 6

gain ℅ = gain * 100 / cp

gain% = 6 * 100 / 30

gain% = 20℅

hope it's helps you.....

Answer 2

Heya ✋

Given that

CP of 36 books = SP of 30 books

Solution

Let the SP of 1 book be ₹1. Then,

SP of 30 books = ₹30

CP of 30 books = ₹30

SP of 36 books = ₹36

SP > CP = Gain

Gain = SP - CP

= ₹(36 - 30)

= ₹6

Gain % = Gain/CP × 100

= 6/30 × 100

= 20 %






Thanks :)))