Give stream of consciousness and then the final answer. The floor of a rectangular room is 21 m long and 12 m wide. The room is surrounded by a veranda of width 2 m on all its sides. The area of the veranda is :\nOptions:\n(A) 124 m2\n(B) 128 m2\n(C) 138 m2\n(D) 148 m2\n(E) None of these
User
Area of the outer rectangle = 25 Ã— 16 = 400 m2\nArea of the inner rectangle = 21 Ã— 12 = 252 m2\nRequired area = (400 â€“ 252) = 148 m2
The final answer: (D).
Assistant