Question

A man bought notebooks at the rate of Rs.72,per dozen and sold them at the rate of Rs.25 for a packet of 5 books.what was his gain or loss?

Answer 1

First the first condition is that you find cost of one book in per dozen
Cost of 12 book= rs. 72
Cost of one book = 72÷12 = 6
Now he buys one book in rs. 6
Now,
He sell 5 book = rs. 25
Cost of one book = 25÷5 = 5
He sell one book in rs. 5
Now compare cost price and selling price
Cost price > selling price
So,
He has get a loss of rs. 1





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Answer 2

CP:

72 per dozen

= 72/12

=6

SP:

25 per 5

25/5

=5

CP>SP

6>5

6-5=1

1 rupee loss per book