GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Retired Moderator
Joined: 16 Apr 2020
Status:Founder & Quant Trainer
Affiliations: Prepster Education
Posts: 1546
Given Kudos: 172
Location: India
WE:Education (Education)
Water flows into a reservoir which is 200m long and 150m wide, through
[#permalink]
08 Mar 2021, 00:00
08 Mar 2021, 00:00
2
1
5
Bookmarks
00:00
Question Stats:
33% (02:52) correct
66% (02:40) wrong based on 12 sessions
Hide Show timer Statistics
Water flows into a reservoir which is 200m long and 150m wide, through a pipe of cross-section 30cm x 20cm at 20 kmph. In what time will the water level reach a height of 8m?
Show: ::
200 hours
Re: Water flows into a reservoir which is 200m long and 150m wide, through
[#permalink]
08 Mar 2021, 03:20
08 Mar 2021, 03:20
2
3
Bookmarks
In such questions in Geometry, \(Time = \frac{Volume}{Rate * Area}\)
Volume of the cuboid (to get to a height of 8m) = 200 * 150 * 8 = 2,40,000 \(m^3\)
Rate = 20 km/hr = 20 * 1000 m /hr = 20000 m/hr
CSA Area of the pipe = 30 * 20 = 600 \(cm^2\) = \(\frac{600}{100 * 100} = \frac{6}{100} m^2\)
Therefore Time = \(\frac{240000}{20000 * \frac{6}{100}} = \frac{240000}{1200} = 200\) hours
Arun Kumar
Volume of the cuboid (to get to a height of 8m) = 200 * 150 * 8 = 2,40,000 \(m^3\)
Rate = 20 km/hr = 20 * 1000 m /hr = 20000 m/hr
CSA Area of the pipe = 30 * 20 = 600 \(cm^2\) = \(\frac{600}{100 * 100} = \frac{6}{100} m^2\)
Therefore Time = \(\frac{240000}{20000 * \frac{6}{100}} = \frac{240000}{1200} = 200\) hours
Arun Kumar
General Discussion
Re: Water flows into a reservoir which is 200m long and 150m wide, through
[#permalink]
25 Jul 2023, 08:08
25 Jul 2023, 08:08
Hello from the GRE Prep Club BumpBot!
Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
