Question
Mon May 14, 2012 By:
 

Jamila sold a table and a chair for Rs 1050, thereby making a profit of 10% on the table and 25% on the chair. If she had taken a profit of 25% on the table and 10% on the chair she would have got Rs 1065. Find the cost price of each.

Expert Reply
Tue May 15, 2012
Let the cost price of the table be Rs x and the cost price of the chair be Rs y.
The selling price of the table, when it is sold at a profit of 10% = Rs x + 10x/100 = 110x / 100
 
The selling price of the chair when it is sold at a profit of 25% = Rs y + 25y/100 = 125y / 100
 
So, 110x / 100 + 125y / 100 = 1050    ... (1)
 
When the table is sold at a profit of 25%, its selling price = Rs (x + 25x/100) = Rs 125x / 100
 
When the chair is sold at a profit of 10%, its selling price = Rs (y + 10y/100) = Rs 110y / 100
 
So, 125x / 100 + 110y / 100 = 1065   ... (2)
 
Solve (1) and (2), to get x = 500 and y = 400
 
Hence. the cost price of the table is Rs 500 and the cost price of the chair is Rs 400.
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