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15 May 2023, 01:30
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
83% (02:32) correct
17%
(03:47)
wrong
based on 76
sessions
History
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At 12:00, noon, a pool is \(\frac{3}{25}\) full. It is being filled at a constant rate of 2 gallons per minute. At 2:30 PM, the pool is 28% full. How many gallons does the full pool hold?
A. 1,875
B. 1,925
C. 1,975
D. 2,025
E. 2,075
A. 1,875
B. 1,925
C. 1,975
D. 2,025
E. 2,075
15 May 2023, 06:08
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Time Elapsed Since 12- 2.5 hrs = 150 mins
Rate of Filling= 2g/min
So, quantity filled = 300g (2*150)
Proportion filled in 150 mins= 16% (7/25-3/25 = 4/25= 16%) - (we derive 7/25 from 28%)
So, if 300g constitutes 16% of the total capacity, the total capacity would be 1875g ((100*300)/16) - So, Option A
Rate of Filling= 2g/min
So, quantity filled = 300g (2*150)
Proportion filled in 150 mins= 16% (7/25-3/25 = 4/25= 16%) - (we derive 7/25 from 28%)
So, if 300g constitutes 16% of the total capacity, the total capacity would be 1875g ((100*300)/16) - So, Option A
Archit3110
15 May 2023, 10:37
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total time elapsed is 150 mins
let total capacity be x
3x/25 + (150*2) = .28 *x
solve for x= 1875
option A
let total capacity be x
3x/25 + (150*2) = .28 *x
solve for x= 1875
option A
Bunuel
