now, think of a number (easy one, because you'll have to multiply it and divide it)
multiply it by two
add 8 to the product
divide the total by two
rest the number you thought first
now, match the letter in the alphabet with the number you got (e.g.: you got 1, the letter is A; got 2, letter B, etc.)
quickly, find a country beggining with that letter (e.g: with A, Argentina; with B, Brazil)
and finnaly find an animal with the immediately next letter in the alphabet.
sorry, guys, there aren't elephant in Denmark...
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Funny Math Game
Started by andres, Mar 06 2006 08:16 AM
5 replies to this topic
#4
Posted 06 March 2006 - 09:36 PM
And since I'm easily amused and kind of a math geek...here's how the number is always four...
Let x be the number you choose. No restrictions on the domain.
1. Think of a number.
x
2. Multiply it by two.
2x
3. Add eight to the product.
2x + 8
4. Divide the total by two.
(2x + 8) / 2
5. Subtract the first number (x).
(2x + 8)/2 - x
6. Simplify.
(2x + 8)/2 - x =
(2/2)x + (8/2) - x=
(x + 4) - x = 4
Let x be the number you choose. No restrictions on the domain.
1. Think of a number.
x
2. Multiply it by two.
2x
3. Add eight to the product.
2x + 8
4. Divide the total by two.
(2x + 8) / 2
5. Subtract the first number (x).
(2x + 8)/2 - x
6. Simplify.
(2x + 8)/2 - x =
(2/2)x + (8/2) - x=
(x + 4) - x = 4
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