Brain Teasers
Simple Addition #2
Add in any required number of mathematical symbols to make this equation work.
8 8 8 = 6
8 8 8 = 6
Hint
You need to use square roots, division, brackets, factorial and addition.Factorial = !
n! = n * (n-1) * (n-2) * .... * 2 * 1
E.g. 2! = 2 * 1
3! = 3 * 2 * 1
0! = 1
Answer
Take note: Square roots are defined as SqRt( ) because the square root sign does not show up.SqRt(8 / 8 + 8)! = 6
8/8 + 8 = 9
SqRt( 9 ) = Square root 9 = 3
3! = 3 * 2 * 1 = 6
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Comments
Good job!
Here is an alternative solution:
8 - SqRt(SqRt(8+) = 6
8 - SqRt(SqRt(16)) =
8 - SqRt(4) =
8 - 2 = 6
Here is an alternative solution:
8 - SqRt(SqRt(8+) = 6
8 - SqRt(SqRt(16)) =
8 - SqRt(4) =
8 - 2 = 6
The emoticon with the sunglasses above should be an "8".
Another solution: [sqrt[8+8]! / 8]! = 6.
4! = 24.
4! = 24.
cuberoot 8 + cuberoot 8 + cuberoot 8 = 2+2+2 = 6
Another 3 * cuberoot of 8.
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