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Mathematical Puzzles


Difficulty: MediumPuzzle 1

Which square, which circle, and which triangle has the closest area to the doughnut shape on the left?

The drawings are to scale, so you might be able to judge it, as well as working the actual areas out.

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[Puzzle Code = ZKRC] Puzzle Copyright © Kevin Stone

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Direct Link: www.brainbashers.com?ZKRC


Difficulty: EasyPuzzle 2

Starting in the bottom left corner and moving either up or right, one square at a time, adding up the numbers along the way, what is the largest sum which can be made once you have reached the top right corner?

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[Puzzle Code = ZNGR] Puzzle Copyright © Kevin Stone

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Direct Link: www.brainbashers.com?ZNGR


Difficulty: MediumPuzzle 3

Puzzle IconAt the local sweet shop, three particularly nice sweets are on special offer.

A Sparkle, a Wibbler and a Nobbler together cost 40p.

  • A Nobbler is over three times the price of a Sparkle.
  • Six Sparkles are worth more than a Wibbler.
  • A Nobbler, plus two Sparkles costs less than a Wibbler.
Can you determine the price of each type of sweet?

[Puzzle Code = ZQVP] Puzzle Copyright © Kevin Stone

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Direct Link: www.brainbashers.com?ZQVP


Difficulty: EasyPuzzle 4

Puzzle IconA numismatist decides to divide their coin collection between their children.

The eldest gets 1/2 of the collection, the next gets 1/4, the next gets 1/5, and the youngest gets the remaining 49 coins.

How many coins are in the collection?

[Puzzle Code = ZXNW] Puzzle Copyright © Kevin Stone

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Direct Link: www.brainbashers.com?ZXNW

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