Using 4 sevens (7, 7, 7, 7) Try to get 100. You can use any operation (+, -, *, /, ^2 etc.) in mathematics. You can use each 7 just once and you can use the results obtained from your operations. Good luck.... First one who succeeds will be the best answer.
2007-01-17 03:19:21 · 6 answers · asked by foxy 1 in Science & Mathematics ➔ Mathematics
Thanks for posing the question, I had to perform jury service today and it was great to have something interesting to ponder...
7^0 + 7^0 + 7^2 +7^2 = 100 exactly
In other words, 1+1+49+49 = 100.
QED
2007-01-17 15:06:44 · answer #1 · answered by RWPOW 2 · 0⤊ 0⤋
Ooh clever. Well I did get 99!
7/7 =1
(7^2)+(7^2) = 2(49) = 98.
Add the 1 and the 98 = 99.
ButI did get 100 using an extra 7 (and a 2 :P)
7(7+7) / 7^2 + 2(7^2)
Good day, person!
2007-01-17 11:59:08 · answer #2 · answered by ღ♥ღ latoya 4 · 0⤊ 0⤋
7 squared, times 7, divided by 7 expressed in base 7 would be 100.
2007-01-17 11:29:57 · answer #3 · answered by a simple man 6 · 0⤊ 0⤋
{(7^7)+(7X7)}/7=100
Am I correct? Sorry if I'm not, I'm a History major
2007-01-17 11:41:32 · answer #4 · answered by mrjomorisin 4 · 0⤊ 0⤋
9,3326215443944152681699238856267e+157
2007-01-17 12:31:41 · answer #5 · answered by gjmb1960 7 · 0⤊ 0⤋
its to early in the morning to try and figure out this one
2007-01-17 11:27:59 · answer #6 · answered by Anonymous · 0⤊ 2⤋