A) \[40\text{ }{{m}^{2}}\]
B) \[45\text{ }{{m}^{2}}\]
C) \[49\text{ }{{m}^{2}}\]
D) \[\text{73 }{{m}^{2}}\]
Correct Answer: C
Solution :
Area of wet surface \[=\,\,lb+2(l+b)h=6\times 4+2(6+4)\,1.25\] \[=\,\,24+25=\mathbf{49}\,{{\mathbf{m}}^{\mathbf{2}}}\]
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