A rectangular room was designed to be built for a length of 15 feet and a breadth of 20 feet. Find the absolute error, relative error and percentage error in the area of the room if there is a deviation in the length of the room by 0.5 feet and breadth by 0.3 feet after the construction.

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A: given dataμA =42μB = 47∴ difference = 47-42 = 5MAD = 2.5

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