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06 Oct 2019, 21:33
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A certain dam regulates the volume of water that flows through its floodgates by reducing the area through which water can pass. Does the dam normally allow at least 30% of the maximum volume of water that can pass to flow through?
(1) The maximum volume of water that can pass through the floodgates is three times the volume which is normally allowed to flow through.
(2) The area through which water is allowed to pass is normally less than one third of maximum.
07 Oct 2019, 00:48
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A certain dam regulates the volume of water that flows through its floodgates by reducing the area through which water can pass. Does the dam normally allow at least 30% of the maximum volume of water that can pass to flow through?
(1) The maximum volume of water that can pass through the floodgates is three times the volume which is normally allowed to flow through.
So Max V=3v, where v is normal flow...v=V/3 or v=33.33% of V
Sufficient as answer is Yes >30% of V
(2) The area through which water is allowed to pass is normally less than one third of maximum.
so v could be anything less than 33.33% of V. It could be 31%, then yes, but it could be 10% to, then no
Insuff
A
(1) The maximum volume of water that can pass through the floodgates is three times the volume which is normally allowed to flow through.
So Max V=3v, where v is normal flow...v=V/3 or v=33.33% of V
Sufficient as answer is Yes >30% of V
(2) The area through which water is allowed to pass is normally less than one third of maximum.
so v could be anything less than 33.33% of V. It could be 31%, then yes, but it could be 10% to, then no
Insuff
A
07 Oct 2019, 00:50
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volume of water that flows
is directly proportional to the area through which water can pass.
1) The maximum volume of water that can pass through the floodgates is three times the volume which is normally allowed to flow through..... It gives release relationship...But not the required normally allowed flow
(2) The area through which water is allowed to pass is normally less than one third of maximum....SUFF
OA:B
Posted from my mobile device
is directly proportional to the area through which water can pass.
1) The maximum volume of water that can pass through the floodgates is three times the volume which is normally allowed to flow through..... It gives release relationship...But not the required normally allowed flow
(2) The area through which water is allowed to pass is normally less than one third of maximum....SUFF
OA:B
Posted from my mobile device
