A) 2m
B) 1 m
C) 0.75m
D) 0.5m
Correct Answer: D
Solution :
[d] Earth removed \[=\text{ }250\times 500\text{ }c{{m}^{3}}=\frac{1}{8}\text{ }{{m}^{3}}\] Volume of the pit \[^{~}=\frac{1}{8}\,\,\,{{m}^{3}}\] \[\therefore \] Depth \[=\frac{Volume}{l\times b}=\frac{1}{8}\,\,{{m}^{3}}\div \left( \frac{1}{2}\times \frac{1}{2} \right)\] \[=\frac{1}{2}\,\,m=0.5\,m.\]You need to login to perform this action.
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