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November 26, 2014

A lady buys goods worth Rs 200 from a shop..

A lady buys goods worth Rs 200 from a shop (whose shopkeeper is selling the goods with zero profit). The lady gives him a Rs 1000 note. The shopkeeper gets the change from the next shop, keeps Rs 200 for himself, and returns Rs 800 to the lady.
Later the shopkeeper of the next shop comes with the Rs 1000 note saying "duplicate" and takes his money back. How much LOSS did the shopkeeper face?

November 20, 2014

Weighing the Baby Puzzle

How much does the baby weigh if the mother weighs 100 pounds more than the combined weight of the baby and the dog, and the dog weighs 60 percent less than the baby? Provided the combined weight of all 3 is 170 pounds.

November 11, 2014

Birth Probability

There is a country where everyone wants a boy. Every family continue to have babies till a boy is born. If the probability of having a girl or a boy is the same, what is the proportion of boys to girls after some time in that country ?