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A well with 10m inside diameter is du...

A well with 10m inside diameter is dug 8.4m deep. Earth taken out of it is spread all around it to a width of 7.5m to form an embankment. Find the height of the embankment.

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RD SHARMA ENGLISH-MENSURATION-III (SURFACE AREA AND VOLUME OF A RIGHT CIRCULAR CYLINDER)-All Questions
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  15. Find the length of 13.2 kg of copper wire of diameter 4mm, when 1 c...

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