A plot of land in the form of a rectangle has a dimension 240 m x 180 m. A drainlet 10 m wide is dug all around it and the earth dug out is evenly spread over the plot, increasing its surface level by 25 cm. Find the depth of the drainlet. Please ans me in an easy way by wich i can understand :P ty
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https://www.meritnation.com/ask-answer/question/a-plot-of-land-in-the-form-of-rectangle-has-dimension/surface-areas-and-volumes/3886848
https://www.meritnation.com/ask-answer/question/a-plot-of-land-in-the-form-of-rectangle-has-dimension/surface-areas-and-volumes/3886848