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# Aptitude - Volume and Surface Area - Discussion

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"Nothing is impossible to a willing heart."
- (Proverb)
2.

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

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) = 15000 x 1 m3 = 750 m3. 20

 Surabhi Verma said: (Tue, Nov 2, 2010 03:15:01 PM) Please can you tell me. What is meant by xcm of rainfall and how you calculated depth?

 Gutpala said: (Wed, Nov 24, 2010 01:29:03 AM) How to calculate depth. Here I didn't understand the method.

 Ambi said: (Tue, Dec 7, 2010 06:00:59 AM) What is the shape of rainfall? What formulae is used to calculate the surface area.

 Kiran said: (Tue, Feb 8, 2011 11:37:36 PM) How can we measure the rainfall?

 Divya said: (Mon, Jul 11, 2011 12:13:58 PM) 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

 Sudhir said: (Wed, Jul 13, 2011 11:14:55 PM) @Divya Absolutely you are write.

 Naveen said: (Tue, Aug 2, 2011 06:27:53 PM) Divya Thanks for your explanation.

 Aymen said: (Tue, Sep 27, 2011 03:51:24 PM) Thanks divya for your help.

 Lucas said: (Thu, Nov 17, 2011 04:20:51 PM) Can anyone explain this part please? 5cm = 5/100m.

 Vishwanath said: (Mon, Nov 21, 2011 06:24:42 PM) 1MT=100CM,SO 5CM=1/100M

 Yogendra said: (Fri, Nov 25, 2011 11:15:03 AM) Thanks very much divya.

 Dhaneshwari said: (Thu, Jan 5, 2012 11:26:19 PM) Please explain what is cu ?

 Sundar said: (Mon, Jan 30, 2012 05:27:08 PM) @dhaneshwari cu in problem means cubic (i.e. X^3=x*x*x)...

 Vani Varma..... said: (Tue, Feb 7, 2012 02:02:40 PM) Thank you divya.

 Lijo Ouseph said: (Wed, May 30, 2012 09:04:25 PM) Thank you divya, sundar, & vishwanath.