Mathematical Puzzle
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Three teachers were discussing how long they had been teaching.
- Adrian and Betty had been teaching for a total of 36 years.
- Charles and Betty had been teaching for a total of 22 years.
- Charles and Adrian had been teaching for a total of 28 years.
How long had each been teaching?
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Can you find a number based on the following information?
A) Its a 4 digit number.
B) Its first digit is of no use.
C) Its third and fourth digit is the mirror image of each other.
D) The second digit is half the third.
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At the local Puzzlefry Internet dispatch center, the packing department was getting ready for the weekend.
However, it was late in the day and the final five packages were ready to be labelled.
Unfortunately, John dropped the labels to the packages and then had no idea which label belonged to which packet.
What is the probability that John managed to correctly label exactly four of the five packages?
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The Puzzlefry mechanical computer is a very sensitive device, it consists of interlocked toothed gear cogs.
The largest Cog has 242 teeth and the others have 160, 64 and 22 respectively.
By accident, John started to rotate the largest Cog.
How many revolutions must he rotate the largest Cog make before the computer is back in its starting position with all of the Cogs where they started?
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A kind gentleman decided to give 10 oranges to each of the girls in his town and 5 oranges to each of the boys.
Of the 612 children in his town, only half the girls and three quarters of the boys took the sweets.
How many oranges did the kind gentleman have to buy?
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What number is one half of one third of one quarter of 360?
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Jahn and his wife went to a party where four other married couples were present. Every person shook hands with everyone he or she was not acquainted with. When the handshaking was over, John asked everyone, including his own wife, how many hands they shook. To his surprise, Jahn got nine different answers.
How many hands did John’s wife shake ?
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What comes next in the sequence
24, 10, 8, 10, 18 , ?
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