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21 October, 06:31

Ella is tiling his kitchen. The kitchen is a rectangle measuring 3 1/2m by 5 3/4m.

Tiles come in packs that cost £15 per pack. Each pack covers an area of 1m^2.

Just in case he breaks some tiles, Ella decides to buy more packs than he needs.

He buys an extra 10% of the number of tiles he needs.

How much does Ella pay for this tiles?

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  1. 21 October, 08:57
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    first find the area of the kitchen (im going to use decimals instead of fractions)

    3.5 * 5.75 = 21.125 m^2

    this means 22 packs of tiles are needed (round up to whole number) as each pack covere 1m^2

    10% of 22 packs = 2.2

    round up to nearest whole number

    Ella buys 3 extra packs of tiles.

    22 + 3 = 25 packs of tiles

    find cost of 25 packs of tiles

    25 * 15 = £330
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