Question

Rita sold two printers for ₹100 each .One of the printers she made a profit of 20% and on the other she incurred a loss of 20% .Find the total loss precent or gain precent.​

Answer 1

Answer:

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For the first printer :

SP = ₹2100

and

profit = 20% i.e. r = 20

Now, SP = (1+ r/100)CP

Or ₹2100 = (1+ 20/100)CP

Or ₹2100 = (6/5)CP

So, CP = 5/6 × ₹2100 = ₹1750

SP = ₹2100

andloss = 20% ,i.e. r = 20.

Now, SP = (1- r/100)CP

or ₹2100 = (1- 20/100)CP

or ₹2100 = (4/5)CP

So, CP = 5/4 × ₹2100 = ₹2625

and Total SP = ₹2100 + ₹2100 = ₹4200

Thus, total CP = ₹1750 + ₹2625 = ₹4375

As CP > SP , There was a loss

Loss = CP - SP = ₹4375 - ₹4200 = ₹175

Loss percent = loss/CP × 100

=> 175/4375 × 100 = 4

Hence, there was a loss of ₹175 and the loss percent was 4.