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Q.

When the plot is sold for Rs. 18,700, the owner loses 15%. At what price must that plot be sold in order to gain 15%?


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a

Rs. 21,000

b

Rs. 22,500

c

Rs. 25,300

d

Rs. 25,800 

answer is C.

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Detailed Solution

Let the cost of the plot be x. Given that, the Rs. 18,700 is 15% less than the cost that the owner had bought.
So, (10015)%85% of x=Rs.18,700  .
We know that, a per cent of b is defined as a 100 ×b  .
85 100 ×x=18700 x=18700× 100 85 x=Rs.22000  
The price at which the owner needs to sell the plot in order to gain 15% is given by,
(100+15)%=115% of x = 115 100 ×22000 =25300  
Hence, the correct option is 3.
 
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When the plot is sold for Rs. 18,700, the owner loses 15%. At what price must that plot be sold in order to gain 15%?