Question

A book shop owner purchased 100 notebooks for rs 15 each however 5 notebooks had to be thrown away a few pages were torn from them .the reamining notebook were sold at rs 18 each find the gain or loss percent

Answer 1

Given that shopkeeper purchased 100 notebooks for 15 rupees each.

Given that 5 notebooks had to be thrown away a few pages were torn.

100 notebooks at 15 rupees each = 1500.

5 notebooks pages were torn = 100 - 5

                                                   = 95.


The remaining notebooks were sold at rupees 18.

Selling price = 95 * 18

                      = 1710.


Profit = 1710 - 1500

          = 210.



We know that profit% = Profit/CP * 100

                                     = 210/1500 * 100

                                     = 14.


Therefore the gain% = 14%.


Hope this helps!

Answer 2

Solution => 
cost price of 100 books = 1500 
selling price of 100 books = 1800
 but 5 books have been thrown then 1800- ( 5* 18)= 1710
so the profit percentage = 1710-1500= 210
210/1500*100= 14 % is the prfit percentage






                        HOPE THIS HELPS 
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