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A ground is 100 m long and 80 m wide. A well 40 m long, 20 m wide and 18 m deep is dug and the amount of the soil taken out are spreadedover rest of the ground. By how much height of ground will rise up? |
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Answer» ground is 100 m LONG and 80 m wide. A WELL 40 m long, 20 m wide and 18 m deep is dug and the amount of the soil taken out are spread over rest of the ground. To find :By how much HEIGHT of ground will rise up.Solution :Length of ground = 100 mWidth of ground = 80 mAgain, length of well = 40 mWidth of well = 20 mDepth of well = 18 m∴ Volume of well = 40 * 20 * 18∴ Volume of well = 14400 m³∵ Volume of EARTH dugout = Volume of well∴ Volume of earth dugout = 14400 m³Now let the rise of height of ground be 'h' m∴ Volume of ground = Volume of earth dugout⇒ 100 * 80 * h = 14400⇒ 8000h = 14400⇒ h = 14400/8000⇒ h = 1.8 m∴ Height of ground will rise by 1.8 m. |
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