A use worth Rs.1,50,000 is sold by X to Y at 5% profit. Y sells the house back to X at 2% loss. Then in the entire transaction:

In the first transaction :

Cost price for X = Rs. 1,50,000

Profit % = 5%

=> Selling price for X = Cost price of Y = $$1,50,000+(\frac{5}{100}\times1,50,000)$$

= $$1,50,000+7500=Rs.$$ $$1,57,500$$

In the second transaction :

Cost price for Y = Rs. 1,57,500

Loss % = 2%

=> Selling price for Y = Cost price of X = $$1,57,500-(\frac{2}{100}\times1,57,500)$$

= $$1,57,500-3150=Rs.$$ $$1,54,350$$

$$\therefore$$ Total profit for X = $$1,57,500-1,54,350=Rs.$$ $$3150$$

=> Ans - (A)