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Firstly, let's fond out now many square metres the decorators are working with

5082/6.60 = 770

Now, the eight = 5.5 so we'll work out the length by 770 / 5.5 = 140

So, four sides of a hall add up to 140, so two add up to 70. The relationship between the sides = 4 : 3, which when applied to 70 gives a length of 40 and a breadth of 30.

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Q: The length and breadth of hall are in the ratio of 43 and its height is 5.5m the cost of decorting its wall including windows and doors at 6.60per meter square is rs 5082 find length and breadth?
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