Question

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

Answer:

she could buy 80 books casting rs 90 each

therefore, total money= 80×90

=7200 rupees

now, she gets discount of 20%

Therefore , 20% of 7200

=7200×20/100

=1440 rupees

Therefore, now she has 1440 rupees more

if she spends 90 rupees for 1 book

what number of books would she get when she spends 1440 rupees

therefore, doing cross multiplication we get,

1400×1/90

=16 books

Step-by-step explanation:

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