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Harry is tiling a wall of area 25m squared.

A tub contains 15kg of tile cement.
The instructions say 2kg of tile cement will tile 1m squared of wall.

How many tubs does Harry need to buy?

2 answers

15 kg will tile 7.5 square meters

25 / 7.5 = 3.333 = 4 tubs

15I2=7.5
25I7.5=3.333

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