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A well is dug 20m deep and it has a diameter 7m. The earth which is so dug out is spread evenly on a rectangular plot 22m long and 14m broad. What is the height of a platform formed? |
| Answer» A well is dug 20m deep and it has a diameter 7m. The earth which is so dug out is spread evenly on a rectangular plot 22m long and 14m broad. What is the height of a platform formed? | |