If the length of a rectangular cloth is reduced by 6 decimeters or the width by 4 decimeters, the area will be reduced by 36 square decimeters. What is the original area of this cloth
Length = 36 △ 4 = 9 decimeters
Width = 36 △ 6 = 6dm
Area = 9 × 6 = 54 square decimeters
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