A) \[30\,m\]
B) \[40\,m\]
C) \[50\,m\]
D) \[10\,m\]
Correct Answer: B
Solution :
(b): Area of Field: \[Rs\text{ }45\to 100\,{{m}^{2}}\] \[\therefore Rs900\to \frac{100}{45}\times 900=2000{{m}^{2}}\] \[A=\frac{1}{2}\left( 2b.\frac{h}{2} \right)=\frac{1}{2}.5h.\frac{h}{2}=\frac{5{{h}^{2}}}{4}\] Now \[\frac{5{{h}^{2}}}{4}=2000\Rightarrow {{h}^{2}}=1600\] \[=h=40\]You need to login to perform this action.
You will be redirected in
3 sec