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555-605 (Medium)|   Geometry|      
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Bunuel
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What is the surface area of rectangular solid y? (1) The dimensions of 12 May 2021, 02:30
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E
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25% (medium)

Question Stats:

70% (01:09) correct 30% (01:22) wrong based on 132 sessions

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What is the surface area of rectangular solid y?

(1) The dimensions of one face of rectangular solid y are 2 by 3.
(2) The area of another face of rectangular solid y is 6
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E
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Kapil1650
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What is the surface area of rectangular solid y? (1) The dimensions of 13 May 2021, 23:43
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1 is suffice ! As we know one length is 2 and other 3

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apurv09
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What is the surface area of rectangular solid y? (1) The dimensions of 01 Jun 2021, 11:34
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Kapil1650
1 is suffice ! As we know one length is 2 and other 3

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its asked for a rectangular solid. so 3 dimensions are req
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What is the surface area of rectangular solid y? (1) The dimensions of 09 Jun 2021, 05:19
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The formula to calculate surface area is:

2(a*b)+2(a*c)+2(a*c)


Statement 1
Only two sides are give so insufficient

Statement 2
Area is given as 6 for one side i.e. l x b

Insufficient

Combining both of them

three sides can 3,3, & 2 or 2,2, & 3

Two sides from 1 = 2 & 3
Third side can be 2 or 3 (from Area)

Answer E
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What is the surface area of rectangular solid y? (1) The dimensions of 09 Jun 2021, 11:39
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If one face measures 2 by 3, clearly the area of another face -- the face exactly opposite that one -- is 6. So when we combine the two statements, we have no information whatsoever about the third dimension of the box (it could measure 2 by 3 by 1 or 2 by 3 by 1,000,000) and the answer is E.

If instead we knew the face with area 6 was immediately adjacent to the face measuring 2 by 3, then there would be only two possibilities: a 2 by 2 by 3 box, or a 2 by 3 by 3 box, though the answer is still E in that case.

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What is the surface area of rectangular solid y? (1) The dimensions of 20 Jun 2022, 10:10
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