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Clint is planning on building a new house for his family. Below are the proposed dimensions of the house.

a) Clint wants to tile the bathroom floor; calculate the area he needs to tile.
b) How many 550 mm x 550 mm tiles does Clint need to tile the bathroom?
c) The tiler can lay tiles at a rate of 0.784m^2 per hour. How long will it take him to tile the bathroom? (Round off to the nearest minute.)
d) The builder recommends to Clint that he buys 10% more tiles than required in case of breakages. The tiles he likes are R 234 for a box of 6 tiles. How much does Clint spend on tiles?

in Grade 12 Maths Literacy by Diamond (38,545 points) | 13 views

1 Answer

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a)    Area = l x b = 3 m x 3 m = 9 m2

b)    Area of 1 tile = 550 mm x 550 mm = 302 500 mm2 = (302 500/1000^2) = 0.3025 m2

Number of tiles = 9/0.3025 = 29.75 ≈ 30 tiles

c)    Time for tiling = 9 m2 ÷ 0.784 m2 = 11.48 hours

0.48 hours = 0.48 x 60 = 28.8 minutes

11.48 = 11 hours 29 minutes

d)    30 tiles needed + 10% = 33 tiles

33 tiles  ÷ box of 6 = 5.5 boxes  ≈ 6 boxes (can only buy full boxes)

R 234  × 6 = R 1404
by Silver Status (28,731 points)

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