imo E

1) area of sq is 1 --> 2 rectangles are possible -- (4,2) and (8,1)
2) area of rect 8 ---> still 2 rectangles are possible -- (4,2) and (8,1)

hence E

If your putting together 8 squares of equal size to form a rectangle, there's only two possible formations that create rectangles (8x1 or 4x2, just done through sketching out).

(1) The area of each pane is 1 sq ft.
So, each side is 1 ft (since each pane is a square).

We're looking for the perimeter of the rectangle formed. So, let's plug pane side = 1 into each formation.

8x1 rectangle = 8 + 1 + 8 + 1 = 18 ft perimeter
4x2 rectangle = 4 + 2 + 4 + 2 = 12 ft perimeter

Since we're not sure which rectangle we're using, (1) is insufficient.

(2) The area of the door (rectangle formed) is 8 sq ft.
So, 8 sq ft = two possibilities.

(a) 4 ft x 2 ft
(b) 8 ft x 1 ft

But as we proved in (1), each of these formations has a different perimeter. So, (2) is insufficient.

Further, (2) didn't help us narrow down (1) or vice versa. We're still left wondering in what formation the squares form the rectangle door. So, the answer is E.

Well, statement 1 and 2 give exactly the same information, don't they?

avenus wrote:Well, statement 1 and 2 give exactly the same information, don't they?

Exactly....Once first statement is not sufficient, obviously the second need not be verified

what is the OA ?