A person sold two cows each for Rs.9900. If he gained 10% on one and lost 20% on the other, then which of the following is true?

The CP of profitable cow = \(\frac{9000}{1.1}\) = 9000

and profit = Rs. 900

The CP of loss yielding cow = \(\frac{9000}{0.8}\) = 12375

and loss = Rs. 2475

so, the net loss = 2475 − 900 = 1575