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25 Nov 2018, 23:39
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
88% (01:15) correct
12%
(01:35)
wrong
based on 148
sessions
History
Date
Time
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A helium pump releases 1,184 units of helium every 37 seconds. At this rate, how many units of helium will it release in a minute?
A. 736
B. 1,327
C. 1,920
D. 2,564
E. 3,122
A. 736
B. 1,327
C. 1,920
D. 2,564
E. 3,122
26 Nov 2018, 04:18
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For 37 seconds it produces 1184 units
so for minute(60 seconds)
(1184x60)/37 = 32 x 60 =1920.
C
so for minute(60 seconds)
(1184x60)/37 = 32 x 60 =1920.
C
26 Nov 2018, 11:06
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Bunuel
We can also apply a bit of number sense here
GIVEN: Pump releases 1,184 units of helium in 37 seconds
This means the pump releases 2,368 units of helium in 74 seconds [if we double the time, we double the output]
We want to determine the volume of helium released in 60 seconds
Since 60 is a little bit less than 74, the output will be a little bit less than 2,368
Only answer choice C works.
Cheers,
Brent
