The figure above shows the floor plan and inside dimensions of the gro

We know that 13+PQ+4=20, since all line segments in the upper side of the plan are parallel to those in the bottom. Thus, the Logical approach to this question will focus on finding what QR is. This will allow us to represent the area of the floor as the sum of several rectangles and calculate it.
Statement (1) gives us exactly that, so it is enough on its own. Answer choices (B), (C) and (E) are eliminated.
Statement (2) is not enough (note that the question doesn't state whether QR's length is an integer). Answer choice (D) is eliminated.
The correct answer is (A).

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DavidTutorexamPAL
Please correct me if I am wrong, in S2 analogy you have mentioned to note that it is not given that QR's length is an integer, my doubt is had it been given that QR's length is an integer, still the answer would have been A. Reason being QR could have been any (integer) number greater than 3 and would yield multiple results and thereby multiple answers to the main question - area of the total picture

Area of given figure = area of ABCD + area of RSTU + area of PQUD

area of ABCD = length * breadth
area of ABCD = 13*9
area of ABCD = 117 -----------(1)

area of RSTU = length * breadth
area of RSTU = 4*7
area of RSTU = 28 -----------(2)

area of PQDU = length * breadth
area of PQDU = 3*(QR+RU)
area of PQDU = 3*(QR+7) ----------------(3)

Area of given figure = 117 + 28 + 3*(QR+7)

we need value of QR to know the area of given figure.

statement 1= QR = 4
putting value,
Area of given figure = 117 + 28 + 3*(4+7)
Area of given figure = 117 + 28 + 3*11
Area of given figure = 117 + 28 + 33
Area of given figure = 178
(sufficient)

Statement 2: No specific value

hence Answer is A

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PQ must be 3, because we know the total horizontal distance across the diagram is 20 meters, and we know two of the horizontal lengths along the top are 13 and 4. So there's only one dimension we don't know, namely QR, and Statement 1 is sufficient and Statement 2 is not.

There is no reason to care whether QR is an integer here, so I'm not sure why one of the above solutions raises that question.
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We can find PQ = 20 - 13 - 4 so the only part we are missing from this graph is QR or the vertical length connecting the 13m.

Statement 1:
Sufficient.

Statement 2:
Doesn't give an exact value of QR. Insufficient.

Ans: A
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