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Question

A man bought two TV sets for Rs. 42500. He sold one at a loss of 10%

and other at a profit of 10%. If the selling price of each TV set is same, determine the cost price of each set.

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Solution

Let the C.P of first set be Rs.x

And, the C.P of the second set will be Rs. (42500x)

S.P of the first set =100loss%100×C.P

=10010100×x [Given: Loss%=10%]

=9x10

S.P of the Second set =100+Profit%100×C.P

=100+10100×(42500x) [Given: Profit %=10%]

=11(42500x)10

It is given that the selling price of both the T.V set is equal.

9x10=11(42500x)10

9x=11(42500x)

9x=42500×1111x

20x=42500×11

x=42500×1120

x=2125×11=23375

Hence, the cost price of first T.V set is Rs. 23375 and for the second one price will be (4250023375=Rs. 19125)


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