Cost price of 2 tables = Rs.3120
Let CP of first table = Rs. x
Then, CP of second table would be = Rs. 3120 – x
Let first table is sold at a gain and second at loss.
Selling price of first table = \(x+x\times \frac{36}{100}\) = \(x+\frac{9x}{25}\) = Rs. \(\frac{34x}{25}\)
Selling price of second table = (3120 - x) x \(\frac{85}{100}\) = Rs. \(\frac{85\times 3120-85x}{100}\)
We have,
= \(\frac{34x}{25}\) = \(\frac{85\times 3120-85x}{100}\)
= 221x = 85 × 3120
= x = \(\frac{85\times 3120}{221}\) = 1920
Cost price of first table = Rs.1920
Cost price of second table = 3120 – 1920 = Rs.1200