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A math riddle that I need help on-

How do you make the number 25 using only five sixes. You can multiply, divide, add, subtract, use exponents, factorials, and fractions.

2007-08-29 13:02:58 · 4 answers · asked by unkowns 1 in Education & Reference Homework Help

George C, that is using six sixes. Anyone have a real answer?

2007-08-29 13:10:31 · update #1

4 answers

How about you turn two of the sixes upside down to become nines:

6 + 9 + 9 + 6/6 = 25

2007-08-29 19:31:41 · answer #1 · answered by Beardo 7 · 0 0

There is a math game called "24", in which you draw a card with 4 numbers. Each number can be used only once in obtaining a formula which will equal 24. Your problem is much like those in that game. Another answerer gave a correct answer, but not a very interesting one. How about this:

6 (#1) x 6 (#2) = 36
36 - 6 (#3) = 30
30 -6 (#4) =24
6 (#5) divided by 6 (#6) = 1
24 + 1 = 25

And, interestingly, there are probably dozens of other ways that you can accomplish such "feats". This is a very good, fun way to learn math.

Teacher, mother, grandmother who learned long ago that there really is some reason to take all the classes that are required in school. You WILL use them all some day, even if only to respond to YA!

2007-08-29 13:18:33 · answer #2 · answered by masince1986 6 · 0 0

6 times 6, minus 6, minus 6, add 6. ok?

2007-08-29 13:18:45 · answer #3 · answered by Michelle 2 · 0 1

6+6+6+6+(6/6)
duh

2007-08-29 13:06:03 · answer #4 · answered by George C 3 · 0 1

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