Question

If the cost price of 18 pens is equal to the selling price of 16 pens , find the gain or loss per cent.

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Answer 1

Answer:

Step-by-step explanation:

This type of Questions Make your Mind Numb Ok So I will give you a very Powerful trick to solve to do this you will remember me and this trick for years Jokes Apart

Cost Price of 18Pens=Selling Price of 16 Pens

Means your Profit is not in the form of Cash But it is in the form of 2 pen You have already earned the amount which you had invested in Buying the Pen.

So the answer is 2pens profit 2Is quantity in which you got the profit.

Now apply Ratio Method

18/16=CP/SP

18/16=SP/CP

SP Became CP and CP Became SP

So Put 16 as Base and solve the sum

18-16=2

2/16*100=12.5%

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