Featuring the unique "ScienceToday" monthly magazine published by Times of India, during 1966-1991.

Friday, October 12, 2007

Today's puzzle

P11      0667  111007
A man visits his friend and says, “if you will lend me the amount of money I have in my pocket, I will pay you the Rs. 10 I already owe you”. The friend obliges, and is paid the previous debt. The man then visits a second friend from whom he succeeds in borrowing an amount of money equal to that in his pocket, and pays him Rs. 10 for an already outstanding debt. This procedure he repeats on two more occasions and having paid two more outstanding debts of Rs. 10 each , leaves with nothing in his pocket. What is the total amount he now owes his four friends ?

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