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07 May 2021, 07:15
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
90% (02:05) correct
10%
(01:43)
wrong
based on 39
sessions
History
Date
Time
Result
Not Attempted Yet
If a rectangular box has two faces with an area of 30, two faces of area 60, and two faces of area 72, what is its volume?
A. 60
B. 90
C. 162
D. 300
E. 360
A. 60
B. 90
C. 162
D. 300
E. 360
08 May 2021, 09:45
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Bunuel
Width*Depth = 30;
Width*Height = 60;
Depth*Height = 72.
Multiply: (Width*Depth*Height)^2 = Volume^2 = 30*60*72 = 30*(30*2)*72 = 30^2*12^2 --> Volume = 30*12 = 360.
Answer: E.
General Discussion
Thelegend2631
07 May 2021, 07:24
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Lb = 30 - 1
Bh = 60 - 2
Lh = 72 - 3
1/3 = L/H = 0.5
Lh = 72
L² = 36
L = 6
B = 5
H = 12
Volume = 360
Answer E 360
Posted from my mobile device
Bh = 60 - 2
Lh = 72 - 3
1/3 = L/H = 0.5
Lh = 72
L² = 36
L = 6
B = 5
H = 12
Volume = 360
Answer E 360
Posted from my mobile device
