A cistern 8 m long and 6 m wide contains water up to a breadth of 1 m 85 cm. Find the total area of the wet surface.
Choose the correct choice.
A) 102 m sqaure  B) 100 m sqaure  C) 152 m sqaure  D) 164 m sqaure  E) None of these
Explanation:   Area of the wet surface =   2[lb+bh+hl] - lb = 2 [bh+hl] + lb   = 2[(6*1.85+8*1.85)]+8*6 = 100 m square   Option 100 m sqaure
<result>B</result>
A cistern 8 m long and 6 m wide contains water up to a breadth of 1 m 85 cm. Find the total area of the wet surface.