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30 Jun 2016, 07:49
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
75% (01:55) correct
25%
(02:47)
wrong
based on 200
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Rain is falling at a rate of 3 centimeters per hour all over Springfield. Somewhere downtown in Springfield a group of pigeons is waiting for the rain to stop. If the rain filled a round puddle the with a base area of 350 square centimeters and a depth of 13.5 centimeters, how long did the pigeons wait for the rain to stop?
A. 3 hours and 12 minutes.
B. four hours and 30 minutes.
C. four hours and 45 minutes.
D. five hours and 10 minutes.
E. five hours and 30 minutes.
A. 3 hours and 12 minutes.
B. four hours and 30 minutes.
C. four hours and 45 minutes.
D. five hours and 10 minutes.
E. five hours and 30 minutes.
Senthil1981
Joined: 23 Apr 2015
Last visit: 14 Oct 2021
Posts: 225
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Location: United States
Concentration: General Management, International Business
Schools: Booth PT '19 Ross Weekend"19
WE:Engineering (Consulting)
30 Jun 2016, 08:56
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Answer is : B, 4 hours and 30 mins
The volume of the puddle is irrelevant and only height matters since rain fell all over the city.
Thus, it takes only . 13.5 / 3 = 4.5 hours of rain to fill the puddle
The volume of the puddle is irrelevant and only height matters since rain fell all over the city.
Thus, it takes only . 13.5 / 3 = 4.5 hours of rain to fill the puddle
30 Jun 2016, 10:15
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we only have to deal with the depth, which is 13.5 cm
time taken = 13.5/3 = 4 hour 30 minutes.
time taken = 13.5/3 = 4 hour 30 minutes.
