How many 16 inch tiles for 340 sq feet?

Answer 1

A 16-inch tile covers 256 square inches. Cut properly and butted flush, you ought to be able to cover 340 square feet with 191.25 of these tiles. I like to figure in 10% extra as a practical matter in case of unexpected problems. They won't spoil and the design may be hard to match later.

If this is a foolish textbook question, you should answer 191.25 or round up to 192.