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In order to fix an electric pole along a...

In order to fix an electric pole along a roadside, a pit with dimensions 50 cm `xx` 50 cm is dug with the help of a spade. The pit is prepared by removing earth by 250 strokes of spade. If one stroke of spade removes 500 `"cm"^(3)` of earth, then what is the depth of the pit?

A

3 m

B

1 m

C

0.75 m

D

0.5 m

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