Question

A grid with 3 rows and 52 columns is tiled with 78 identical 2x1 dominoes. How many ways can this be done such that exactly two the dominoes are vertical?
@dan815

Answer 1

Details: The dominos will cover the entire board. They are not allowed to jut over the board, or over lap with each other.

If I know how to draw it I would... -_-

Answer 2

hmm let ssee

Answer 3

interesting qn!

Answer 4

there are 78 tiles 2 by 1, 78*2=140+16=156 places
52*3=156 tiles

Answer 5

2 tiles are vertical only

Answer 6

so u can repeat this whole thing

Answer 7

like this i think

Answer 8

52 is even so