Brain Teasers

Packaging Probability

27 Jan

Packaging Probability

A man works for a packaging company.  One day, he receives four separate orders and accidentally mixed up the addresses, so he applied the address labels at random.
What is the probability that exactly three of packages were labelled correctly?
Put your answers in the comments and check the answers page tomorrow to see if you’re right. Good Luck!

The Mixer Problem.

24 Jan

The Mixer Problem.

Picture a litre of milk and a litre of Kahula. A cup of Kahula is poured into the milk and mixed thoroughly. Then, a cup of this mixture is poured back into the Kahula.

Is the amount of Kahula now in the milk more, less, or the same as the amount of milk in the Kahula? Explain..

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