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15 Nov 2019, 21:43
Kudos
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
51% (01:03) correct
49%
(01:11)
wrong
based on 76
sessions
History
Date
Time
Result
Not Attempted Yet
If the volume of a 1/2 scale model of a rectangular water tower tank is 100 gallons, then how many gallons is the volume of the tank ?
A > 50
B > 200
C > 400
D > 800
E > 1600
A > 50
B > 200
C > 400
D > 800
E > 1600
17 Nov 2019, 07:58
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soumya170293
HALF scale model means all dimensions are half of original.
So \(V_m=\frac{l}{2}*\frac{b}{2}*\frac{h}{2}=\frac{lbh}{8}=100.......lbh=8*100=800\)
So the actual volume =lbh=800
D
19 Nov 2019, 00:19
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soumya170293
Ans. is D
In this question, we need to understand the meaning of Half scale. i.e. All dimensions of Model Length, Breadth & Height are Half.
So, We know that the volume of Rectangle is LxBxH.
given, (L/2)*(B/2)*(H/2)=100
So, full model volume will be, L*B*H= 100*2*2*2
=100*8
=800
Pls give kudos, if you find my explanation good enough
