Tim bought a pen of Rs20 and paid a Rs100 note. The shopkeeper gave him Rs80 change in return.If the Rs100 note was fake, find the shopkeeper's loss.
CP of pen = Rs 20
Amount paid to shopkeeper = Rs 100
Balance paid to Tim = Rs 80
Assuming the Rs 100 was fake, the loss suffered by the shopkeeper is = pen’s cost + balance given to Tim
= 20 + 80 = Rs 100
Answer: D Rs 100