I Need a Brain teaser for College Credits for Algebre

[1AkronBuck]

The question...It was asked on this site a few years back If any one remembers ........


If any one can help me...

The Teaser/ question goes something like this....


A person goes shopping and each time they enter a store they spend half the amount they spent at the previous store ...How much did they spend ..


If anyone remembers.... HELP....

 

[BayBuck]

 

[Crump's brother]

The question...It was asked on this site a few years back If any one remembers ........


If any one can help me...

The Teaser/ question goes something like this....


A person goes shopping and each time they enter a store they spend half the amount they spent at the previous store ...How much did they spend ..


If anyone remembers.... HELP....

I'll ask my math teaching friends in a few minutes...by when do you need the answer?

 

[Mike80]

This is one we used when I had to take algebra

Diophantus's youth lasted one sixth of his life. He grew a beard after one twelfth more. After one seventh more of his life, he married. 5 years later, he and his wife had a son. The son lived exactly one half as long as his father, and Diophantus died four years after his son.

How many years did Diophantus live?

 

[1AkronBuck]

Thanks Guys.... I need it by Friday

 

[Poe McKnoe]

The question...It was asked on this site a few years back If any one remembers ........


If any one can help me...

The Teaser/ question goes something like this....


A person goes shopping and each time they enter a store they spend half the amount they spent at the previous store ...How much did they spend ..


If anyone remembers.... HELP....

Did this occur on Black Friday?

 

[JCOSU86]

$43

 

[ScriptOhio]

This one was on Buckeye Planet before:

In the picture below, a square appears when we rearrange the pieces of the upper triangle to form the lower triangle. The pieces in both pictures are identical. Can you explain the origin of the square?

Answer:The area of a right triangle is computed by multiplying the base times the height and dividing by two. The pieces of the puzzle have an area of 32 square units. Although they can be assembled to form what appears to be a 13?5 right triangle, they actually form quadrilaterals that are slightly smaller or slightly bigger than a 13?5 right triangle. The long side of the these "triangles", i.e, what seems to be the hypotenuse, is not a straight line.
The top figure has an area of 32 square units. The bottom figure, including the empty square, has an area of 33 square units. A real 13?5 right triangle would have an area of 32.5 square units. The distortion is difficult to see because one square of the picture is approximately 3% of the area.
The distortion can be seen more clearly when the empty square constitutes a larger percentage of the area, as in the figure below where 1 square represents 13% of the area.

 

[MililaniBuckeye]

$43

Wrong...it was $44, but it was usually $77.

 

[Buckeyeskickbuttocks]

Looks to me like you ought to seek some college credits in spelling too.

 

[BB73]

This is one we used when I had to take algebra

I guessed 84, since there aren't that many multiples of both 6 and 7. 42 is too young to fit and 126 would make him the world's oldest person, and neither of those is also divisible by 12.

It fit the answer, and was easier than constructing the equation. So unless somebody has to show their work, I wouldn't use that question.

 

[LordJeffBuck]

Here's a real brain teaser for you.....

LINK

 

[OSU_Buckguy]

I guessed 84, since there aren't that many multiples of both 6 and 7.

my guess is that there is an infinite number of multiples of 6 and 7. need to get my calculator out for that one, though.

 

[ORD_Buckeye]

Lamp.

 

[ScriptOhio]

Here's a good one too:

http://www.scientificpsychic.com/mind/fruit1.html