Aptitude - Volume and Surface Area - Discussion
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Read more:"Nothing is impossible to a willing heart."
- (Proverb)
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In a shower, 5 cm of rain falls. The volume of water that falls on 1.5 hectares of ground is: |
| [A]. |
75 cu. m | [B]. |
750 cu. m | | [C]. |
7500 cu. m | [D]. |
75000 cu. m |
Answer: Option C
Explanation:
1 hectare = 10,000 m2
So, Area = (1.5 x 10000) m2 = 15000 m2.
| Depth = |
5 |
m |
= |
1 |
m. |
| 100 |
20 |
 Volume = (Area x Depth) = |
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15000 x |
1 |
 m3 |
= 750 m3. |
| 20 |
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Surabhi Verma said:
(Tue, Nov 2, 2010 03:15:01 PM)
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| Please can you tell me. What is meant by xcm of rainfall and how you calculated depth? |
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Gutpala said:
(Wed, Nov 24, 2010 01:29:03 AM)
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How to calculate depth.
Here I didn't understand the method. |
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Ambi said:
(Tue, Dec 7, 2010 06:00:59 AM)
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What is the shape of rainfall?
What formulae is used to calculate the surface area. |
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Kiran said:
(Tue, Feb 8, 2011 11:37:36 PM)
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| How can we measure the rainfall? |
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Divya said:
(Mon, Jul 11, 2011 12:13:58 PM)
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After the rain falls on the ground, its height is measured. That is how the rainfal is generally measured.
now, coming to the problem, here, the height is 5cm = 5/100m.
volume=lbh
but area=lb
volume=area*h
hence, volume= 15000*5/100 =750 |
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Sudhir said:
(Wed, Jul 13, 2011 11:14:55 PM)
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@Divya
Absolutely you are write. |
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Naveen said:
(Tue, Aug 2, 2011 06:27:53 PM)
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| Divya Thanks for your explanation. |
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Aymen said:
(Tue, Sep 27, 2011 03:51:24 PM)
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| Thanks divya for your help. |
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Lucas said:
(Thu, Nov 17, 2011 04:20:51 PM)
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Can anyone explain this part please?
5cm = 5/100m. |
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Vishwanath said:
(Mon, Nov 21, 2011 06:24:42 PM)
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1MT=100CM,SO
5CM=1/100M |
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Yogendra said:
(Fri, Nov 25, 2011 11:15:03 AM)
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| Thanks very much divya. |
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Dhaneshwari said:
(Thu, Jan 5, 2012 11:26:19 PM)
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| Please explain what is cu ? |
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Sundar said:
(Mon, Jan 30, 2012 05:27:08 PM)
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@dhaneshwari
cu in problem means cubic (i.e. X^3=x*x*x)... |
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Vani Varma..... said:
(Tue, Feb 7, 2012 02:02:40 PM)
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| Thank you divya. |
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Lijo Ouseph said:
(Wed, May 30, 2012 09:04:25 PM)
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| Thank you divya, sundar, & vishwanath. |
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