A cistern 9 m long and 6 m wide contains water up to a breadth of 2 m 25 cm. Find the total area of the wet surface.
Choose the most appropriate option.
A) 142 m sqaure	B) 122 m sqaure	C) 135 m sqaure	D) 188 m sqaure	E) None of these
Explanation:   Area of the wet surface =   2[lb+bh+hl] - lb = 2 [bh+hl] + lb   = 2[(6*2.25+9*2.25)]+9*6 = 122 m square   Option 122 m sqaure
<result>B</result>
A cistern 9 m long and 6 m wide contains water up to a breadth of 2 m 25 cm. Find the total area of the wet surface.