None. 2 pairs = 2*2 people So 4 rows of 2 pairs = 2*2*4 = 16 people. You have only 8.
a cube * * * * * It cannot be a cube because a cube does not have 8 pairs of perpendicular faces - it has 12.
6
28 pairs
There are 4 groups of 2 in 8 (2X4=8, 8/2=4)There are 28 pairs in all the numbers between 1 and 8 (1&2,1&3, etc.)
7 pairs but a total of 8 C1 - C8
8-12 pairs
16
There are 4 pairs, 8 wires in total.
8
4
24 is the answer
100,579,789,798,778,657,668,456,467,367,00
25
300
Eight has two factor pairs. Including their negative counterparts, that makes four pairs.
8