Many of you may have done something similar before.
You are given four numbers, and you must use each number exactly once. You may only use multiplication, division, addition and subratction and parentheses. You must come up with expression that equals 24. 'Joining' numbers is not allowed, for example if you had a 1 and a 3, you may not simply join then to make 13, or 31. Exponentials are no allowed. This includes roots and recipricals.
So the challenge is, make 24 from these sets of numbers
1 2 3 4
1 2 3 5
1 2 3 6
1 2 4 5
1 2 4 6
1 2 5 6
1 3 4 5
1 3 4 6
1 3 5 6
1 4 5 6
2 3 4 5
2 3 4 6
2 3 5 6
2 4 5 6
3 4 5 6
Out of those, 1346 is by far the most difficult. I'll post the people who have solved each one next to it.
Banx99, stay away please.
1 x 2 x 3 x 4 = 24
(1 + 2) x (3 + 5) = 24
(2 + 3 - 1) x 6 = 24
(5 + 2 - 1) x 4 = 24
(6 + 2) x (4 - 1) = 24
(5 - 2 + 1) x 6 = 24
(5 + 4 - 1) x 3 = 24
I solve this later (I hope)
6 x 3 + 5 + 1 = 24
-
(3 + 4 + 5) x 2 = 24
6 x 3 + 2 + 4 = 24
6 x 5 - 2 x 3 = 24
6 x 5 - 2 - 4 + 24
- I have to go now
(many edits because I first solved 1, then 2 etc.)
Originally posted by banx99I only don't know the technique
i wonder if i can remember all of them
i know i can remember 1346 but the others i havnt done for a while
what about mking 41 using 2, 6, 8, 10 and 11 still remember?
EDIT: i wonder if 1,3,4,6 and 1,4,5,6 use the same technique or is there an easier way