SOLUTION: A swimming pool is 50 feet wide and 30 feet long. If it is surrounded by square tiles, each of which is 1 foot by 1 foot, how many tiles are there surrounding the pool?
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Question 1089249: A swimming pool is 50 feet wide and 30 feet long. If it is surrounded by square tiles, each of which is 1 foot by 1 foot, how many tiles are there surrounding the pool?
(50+2)*(30+2) - 50*30 = 164.
It is the area (in square feet) of the strip of the wide 1 ft surrounding the pool,
and it is, in the same time, the number of tiles.
Answer. 164 tiles.
