Question

A shopkeeper sold two TV sets at rupees 9900 each he sold one at a profit of 10% and the another at a loss of 10% on the whole whether he gets profit or loss if so what is its percentage

Answer 1

Answer:

2Tv CP=9900₹

1 TV CP=4950

A/Q

4950+4950×10/100=sp

SP=4950+495=5445₹

second,

CP=4950

loss%=4950-4950×10/100

SP=4950-495=4455₹

total CP=9900₹

total SP=5445+4455=9900₹

profit=0₹

profit%=0×9900/100

=0%

Answer 2

Answer:

-1% loss

Explination

sold Two TV sets = 9900+9900 = 19800(he sold both same price)

First TV set sold at 10% profit

=>1.10CP = 9900

=>CP = 9900/1.1

=>CP = 9000

=>1 st TV CP = 9000

Second TV set sold at 10% loss

=>0.9CP = 9900

=>CP = 9900/0.9

=>CP = 11000

=>2 nd TV CP = 11000

So, Total Cost price(C.P) = (first TV + Second Tv)=11000+9000 = 20000

profit (or) loss = ((S.P - CP)/C.P)*100

=((19800-20000)/20000)*100

=-(200/20000)*100

=-1/100*100

=-1  (Since it is negative So, loss)

= -1 % loss

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