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Question

A man buys two horses for Rs.1550.He sells one so as to lose 23% and the other so as gain 27%.On the whole he neither gain nor loses.what does each horse cost ?

A
Rs.807,Rs.743
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B
Rs.817,Rs.733
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C
Rs.827,Rs723
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D
Rs.837,Rs.713
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Solution

The correct option is C Rs.837,Rs.713
Let, the cost price of first horse is x Rs. and cost price of second horse is y Rs.
Hence,
x+y=1550 Rs. .(1)
Now, He sells first horse at loss of 23%
Hence, loss=23100x
He sells second horse at profit of 27%
Hence, profit=27100y
Given that on the whole he neither profited nor loses.
Hence,
profit=loss
or
23100x27100y=0
23x27y=0 .(2)
Solving equation (1) and (2) we get
Put value of y from (1) to (2)
23x27(1550x)=0
23x+27x27×1550=0
50x=27×1550
x=27×155050
x=27×31
x=837 Rs. (3)
put value of x from (3) to (1) we get
837+y=1550
y=1550837
y=713 Rs. ...(4)
Hence cost price of two horses is
Rs. 837, Rs. 713






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