Math Problem of the Week #17

George rolls a random die and flips a random coin. What is the probability that George both rolls a prime number and flips tails?

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Math Problem of the Week #15

Starting January 2, 2017, Jeanie saves one dollar on Monday, three dollars on Tuesday, five dollars on Wednesday, and so forth until Sunday, when she saves eleven dollars on Sunday. Then she starts over on Monday and does it again. If she continues this pattern, how much money will she have after saving her money … Continue reading Math Problem of the Week #15

Math Problem of the Week #10

15 friends meet together for a party. Each friend shakes the hand of each other friend, not counting his own. How many handshakes were there in all?   BONUS QUESTION: In a similar situation, there are x friends meeting together for a party. Each friend shakes the hand of each other friend, same as above. … Continue reading Math Problem of the Week #10