Question

A shopkeeper bought a certain number of notebooks for rupees 200 five of which were stoles. he sold the rest for rs 4 more than he paid for each. thus he made a profit of rs 40. how many books did he buy?​

Answer 1

Step-by-step explanation:

Let the shopkeeper buy x number of books.

According to the given condition cost of x books =Rs80

Therefore cost of each book =

x

80

Again when he had brought 4 more books

Then total books in this case =x+4

So cost of each book in this case = x+480

According to Question,

x80 − x+480 =1x

(x+4)80(x+4)−80x =1

x2 +20x−16x−320=0

(x−16)(x+20)=0

x=16orx=−20

Hence the shopkeeper brought 16 books

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Answer 2

Answer:

your answer is 25 books..

Step-by-step explanation:

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