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Himalayan
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The rectangular box with 2x8x20 inches dimension is to be 04 Feb 2007, 20:17
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

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17. The rectangular box with 2x8x20 inches dimension is to be completely wrapped with a paper. If a single sheet of paper is to be used without patching, then the dimensions of the paper could be

(A) 17 in by 25 in
(B) 21 in by 24 in
(C) 24 in by 12 in
(D) 24 in by 14 in
(E) 26 in by 14 in



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devilmirror
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The rectangular box with 2x8x20 inches dimension is to be 04 Feb 2007, 21:34
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Himalayan
17. The rectangular box with 2x8x20 inches dimension is to be completely wrapped with a paper. If a single sheet of paper is to be used without patching, then the dimensions of the paper could be

(A) 17 in by 25 in
(B) 21 in by 24 in
(C) 24 in by 12 in
(D) 24 in by 14 in
(E) 26 in by 14 in
Show more


Let's calculate the area of the box

= 2 x ((8x2) + (8x20) + (20x2)) = 2 x (16+160+40) = 2 x 216 = 432

A) Area = 17 x 15 = 425
B) Area = 21 x 24 = 504
C) Area = 24 x 12 = 288
D) Area = 24 x 14 = 336
E) Area = 26 x 14 = 364

Only Choice B has Area 504 > 432.

B. is the answer.
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prude_sb
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The rectangular box with 2x8x20 inches dimension is to be 04 Feb 2007, 22:40
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Himalayan
17. The rectangular box with 2x8x20 inches dimension is to be completely wrapped with a paper. If a single sheet of paper is to be used without patching, then the dimensions of the paper could be

(A) 17 in by 25 in
(B) 21 in by 24 in
(C) 24 in by 12 in
(D) 24 in by 14 in
(E) 26 in by 14 in
Show more




2*(16 + 160 + 40) = 432

only B gives an area larger than 432
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The rectangular box with 2x8x20 inches dimension is to be 10 Feb 2007, 10:00
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Himalayan
17. The rectangular box with 2x8x20 inches dimension is to be completely wrapped with a paper. If a single sheet of paper is to be used without patching, then the dimensions of the paper could be

(A) 17 in by 25 in
(B) 21 in by 24 in
(C) 24 in by 12 in
(D) 24 in by 14 in
(E) 26 in by 14 in
Show more


Thanx..
B is OA.

sometime, a simple concept can be a big trouble. I was looking for a single sheet of paper that can wrap the box without cutting.
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bmwhype2
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The rectangular box with 2x8x20 inches dimension is to be 23 May 2007, 16:27
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devilmirror
Himalayan
17. The rectangular box with 2x8x20 inches dimension is to be completely wrapped with a paper. If a single sheet of paper is to be used without patching, then the dimensions of the paper could be

(A) 17 in by 25 in
(B) 21 in by 24 in
(C) 24 in by 12 in
(D) 24 in by 14 in
(E) 26 in by 14 in

Let's calculate the area of the box

= 2 x ((8x2) + (8x20) + (20x2)) = 2 x (16+160+40) = 2 x 216 = 432

A) Area = 17 x 15 = 425
B) Area = 21 x 24 = 504
C) Area = 24 x 12 = 288
D) Area = 24 x 14 = 336
E) Area = 26 x 14 = 364

Only Choice B has Area 504 > 432.

B. is the answer.
Show more


small clarification:
we find the SURFACE AREA of the box by finding the areas of the three faces and then multiply everything by two (because each face has a front and back).



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Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
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