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Can anybody tel the answer??

ali (Student CA CPT ) (118 Points)

14 August 2014

A lady buys goods of rs.200 (cost price of the shopkeeper) & pays a 1000rs note to the shopkeeper.he gets the change from the next shop & keeps 200 for himself & returns 800 to the lady.after sometime the next shop owner returns the 1000rs note saying it is 'duplicate' & takes the money back.how much loss did the shopkeeper suffer?

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4 Replies

S R P . (.) (420 Points)
Replied 14 August 2014

The easiest way to solve this problem is to ignore the Duplicate Note until the end. Instead, assume the shopkeeper's neighbor comes back the next day to make change himself. Only after making change does the shopkeeper notice the Duplicate Note.

Customer gives shopkeeper 1000rs note. Shopkeeper is +1000.
Shopkeeper gives neighbor 100rs note. Receives 1000rs change. Shopkeeper is +1000.
Shopkeeper gives customer 800rs + 200rs in goods. Shopkeeper is 0.
Neighbor comes and asks for change for 1000rs note. Hands shopkeeper same note. Shopkeeper gives change. Shopkeeper is 0.
Shopkeeper notices note is counterfeit. Fake 1000rs is worth nothing. Shopkeeper is -1000.