On a commodity exchange when booking trades with provision for stop-losses, a trader can make a profit of $\displaystyle$$\displaystyle \text{Rs }$ 20,000 or incur a loss of $\displaystyle$$\displaystyle \text{Rs }$ 20,000. The probabilities of making profit and incurring loss, from the past experience, are known to be $0.75\displaystyle and $0.25 respectively. The expected profit to be made by trader should be