Question

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The principal sanctioned a certain amount to the librarian to purchase some Mathematics books for the school library. She could buy 80 books casting Rs 90 each from the local book seller. There she approached to the publisher who offered her a 20% discount, Find the number of copies of Mathematics books which she could buy from the publisher for the sanctioned money.​

Answer 1

Step-by-step explanation:

Explanation:

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If she could buy 80 books costing ₹90 that means she had ₹7200 (as 80*90 is 7200)

Publisher

Discount=20%

IE selling price = 80% * 90

= ₹72

So, if the price of 1 book is 72 then

No. of books she can buy= 7200/72

= 100 books

Thus, she can buy 100 maths books from the publisher

Hope it can help u dear ✔

Answer 2

Answer:

If she could buy 80 books costing ₹90 that means she had ₹7200 (as 80*90 is 7200)

Publisher

Discount=20%

IE selling price = 80% * 90

= ₹72

So, if the price of 1 book is 72 then

No. of books she can buy= 7200/72

= 100 books

Thus, she can buy 100 maths books from the publisher