How many 2.5 inch by 6 inch tiles will fit on a back splash that is 2.5 feet tall and 8 feet long?

Question

how many 2.5 inch by 6 inch tiles will fit on a back splash that is 2.5 feet tall and 8 feet long?

Answer 1

 

2.5 inch x 6 inch = 15 sq inches per tile

2.5 ft x 12 inches/ft x 8 ft x 12 inches/ft = 2880 sq inches of wall space

2880/15 = 192 tiles

Answer 2

Considering the tiles are set longwise

16 across by 12 high