A trader sells two articles, one at a loss of 10% and another at a profit of 15% but finally there is no loss or gain.If the total sale price of these two articles is Rs.30,000, find the difference between there cost price :
Rs.5000
Rs.6000
Rs.7500
none of these
Correct Option: B
From the question 10 % x = 15% of y ...(i) x+y = 30000 ...(ii)