A lady buys grocery worth Rs. 350 from a shop. The shopkeeper is selling the goods with zero profit. The lady gives him Rs. 2000 note. The shopkeeper gets the change from the next shop, keeps 350 for himself and returns Rs.1650 to the lady. Later, the shopkeeper of the next shop comes with Rs. 2000 note saying that it is a duplicate note and takes his money back. How much loss did the shopkeeper face?

Answer: Option C

Step - 1. Start with the assumption that the shopkeeper has Rs. 10000 in his cash (this is just for making it simple).

Step - 2. The lady comes in and shops for Rs. 350 and gives the shopkeeper Rs. 2000. Then, the shopkeeper now has Rs. 10000 + 2000 = Rs. 12000 in cash.

Step - 3. The shopkeeper takes the Rs. 2000 Note to another shopkeeper and gets Rs. 2000 in change - therefore he still has Rs. 12000 in cash as in step 2.

Step - 4. Now the shopkeeper gives Rs. 1650 back to the lady. So the shopkeeper is now left with 12000 - 1650 = Rs. 10350 in cash.

Step - 5. Now the other shopkeeper comes in with the duplicate note and takes his money back. The duplicate note has zero value. So basically now the shopkeeper is down to 10350 - 2000 =Rs. 8350

Step - 6. He originally had Rs. 10000 in cash. Now has Rs. 8350, So Rs. 1650 loss, plus 350 lost in the grocery that the lady took.

Step - 7. Total loss Rs. 1650 + 350 = Rs. 2000.