The number of square tiles needed to tile a square floor is equal to #a^2 -: b^2#, where #a# is the floor length in inches and #b# is the length of the tile in inches. If #a = 96# and #b =8#, how many tiles are needed?

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Answer 1 · 2018-05-17T05:13:41

144

No. of square tiles needed = #a^2/b^2#

So, if #a=96# and #b=8#, then all you do is you have to sub into your 2 numbers into the equation

No. of square tiles needed = #96^2/8^2 = 144#

Answer 2 · 2018-05-17T05:16:27

#144# tiles are needed.

Area of floor is #96^2# square inches and

area of each tile is #8^2# square inches

Hence, number of tiles needed are

#(96xx96)/(8xx8)#

= #(cancel96^12xxcancel96^12)/(cancel8^1xxcancel8^1)#

= #12xx12#

= #144#