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Posts tagged with math puzzle

And a bit of fun for a change …

February20

How many spare parking spaces are in this picture?see Post Support for answer

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What fraction of the square is the pink triangle?

April27

Using your knowledge of Areas, work out what fraction the pink triangle is of the square (answer soon in post support):

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Puzzle Time again!

October24

Five members of the School Math team are running late for a big competition and hurrying toward the Hall—but they have to cross the stream that cuts through the campus. When they reach the stream, there’s a small boat tied up on their side that they can “borrow” to get to the other side. The […]

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1 = 3 What? Call the Math Doctor!

September24

Yes, you read about it here on H3! In Year 10 you learn the basic laws when working with logarithms. Do you remember what a logarithm is? If not, read more here from an earlier post. Then, take one of these laws (the log of a power) and you can prove, in about as many […]

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Post Support

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]

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