A) \[\frac{1}{2}\,m\]
B) \[\frac{1}{4}\,m\]
C) \[2\,\,m\]
D) \[1\,\,m\]
Correct Answer: A
Solution :
Volume of the soil dug out \[=~30\times 20\times 12=7200\text{ }{{m}^{3}}\] Volume of the earth spread (Area of the ground - Area of pond) \[\times \]height \[7200=(500\times 30-30\times 20)\times h\] \[7200=(15000-600)\,h\] \[\Rightarrow \,\,\,\,h=\frac{7200}{14400}=0.5m\] \[=\,\,\,\]You need to login to perform this action.
You will be redirected in
3 sec