only use four eight's.
2007-06-24 23:40:57 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
use any signs , formulaas
use four times 8
2007-06-25 01:02:11 · update #1
use any signs , formulaas
use four times 8
2007-06-25 01:03:15 · update #2
(8/.8) * (8/.8)
= (10) * (10)
= 100
2007-06-24 23:45:03 · answer #1 · answered by smui0123 3 · 2⤊ 0⤋
8 x 8 = 64 leaving 36 which cannot be represented by 8s alone.
(8 + 8) x 8 = 128
(8 + 8) x 8 - 8 = 120
I am not sure that we can do it, even if we try to use the Octal sytem. I would like to see a valid answer.
I saw an answer which uses decimal eights. I am not sure that was allowed since the questions says to use just four eights. Still, I would say that the answer is quite ingenious.
2007-06-25 06:53:57 · answer #2 · answered by Swamy 7 · 0⤊ 1⤋
these type of questions are just pastime riddles. only i attempt to answer the most challenging type. yet i will give one of the answer
antilog ( log (8 x 8 x 8) base 8)
even (8/0.8) + (8/0.8) also gives the same answer.
if we change the base from 10 to 8 we get more answers.
2007-06-25 06:59:36 · answer #3 · answered by veeraa1729 2 · 0⤊ 0⤋
84+8+8=100 did you mean like this hope its right maths not my strongest subject x
2007-06-25 06:46:31 · answer #4 · answered by zam 1 · 0⤊ 1⤋
The simplest is probably 88 / .88
.
2007-06-25 07:05:32 · answer #5 · answered by tsr21 6 · 1⤊ 0⤋