### Discussion :: Volume and Surface Area - General Questions (Q.No.2)

2. | In a shower, 5 cm of rain falls. The volume of water that falls on 1.5 hectares of ground is: |
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Answer: Option B Explanation: 1 hectare = 10,000 m So, Area = (1.5 x 10000) m
Video Explanation: https://youtu.be/dDbVuBzYop8 |

Surabhi Verma said: (Nov 2, 2010) | |

Please can you tell me. What is meant by xcm of rainfall and how you calculated depth? |

Gutpala said: (Nov 24, 2010) | |

How to calculate depth. Here I didn't understand the method. |

Ambi said: (Dec 7, 2010) | |

What is the shape of rainfall? What formulae is used to calculate the surface area. |

Kiran said: (Feb 8, 2011) | |

How can we measure the rainfall? |

Divya said: (Jul 11, 2011) | |

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: (Jul 13, 2011) | |

@Divya Absolutely you are write. |

Naveen said: (Aug 2, 2011) | |

Divya Thanks for your explanation. |

Aymen said: (Sep 27, 2011) | |

Thanks divya for your help. |

Lucas said: (Nov 17, 2011) | |

Can anyone explain this part please? 5cm = 5/100m. |

Vishwanath said: (Nov 21, 2011) | |

1MT=100CM,SO 5CM=1/100M |

Yogendra said: (Nov 25, 2011) | |

Thanks very much divya. |

Dhaneshwari said: (Jan 5, 2012) | |

Please explain what is cu ? |

Sundar said: (Jan 30, 2012) | |

@dhaneshwari cu in problem means cubic (i.e. X^3=x*x*x)... |

Vani Varma..... said: (Feb 7, 2012) | |

Thank you divya. |

Lijo Ouseph said: (May 30, 2012) | |

Thank you divya, sundar, & vishwanath. |

Lee said: (May 14, 2015) | |

1000 cm = 1 liter but 1 hectare =10000 liters. |

Tanvi Ranta said: (Aug 16, 2015) | |

What is cu? |

Ranjith said: (Sep 29, 2015) | |

1 hector is 10, 000 m2 1.5*10, 000. 0.05*15000. |

Sameer said: (Oct 1, 2015) | |

5 cm of rain falls means height of the water from the ground so depth is 5 cm and which must be converted into meters because volume should be measured in m^3. |

Rajnikanth said: (Mar 9, 2016) | |

The volume of water that falls on 1.5 hectares(area) of ground Conversion { 1 hectare = 10,000 m^2. So, Area = (1.5 x 10000) m^2 = 15000 m^2. //converting into meters. } 5 cm of rain falls -- Depth(height) of the water from ground level. Depth(height) = 5 cm = 5/100 m Finding Volume Considering/assuming ground as cuboid. Volume = (Length*Breadth)*Height. = Area * Height. = 15000*5/100. = 750 m^3. |

Nayan said: (Jun 1, 2016) | |

Please tell me the meaning of volume, breadth, and depth with its formula. |

Sibi said: (Jun 28, 2016) | |

@Rajnikanth. Thank you so much. |

Sanju said: (Jun 29, 2016) | |

How to calculate depth? By using which formula I am not getting that method. Can anyone explain me? |

Nabin said: (Jul 22, 2016) | |

Thanks for explaining the answer @Divya. |

Siddhi Viradiya said: (Jul 29, 2016) | |

Very clear explanation, Thanks @Divya. |

Akhil said: (Aug 2, 2016) | |

Thanks for explaining the solution. |

Ankit said: (Dec 29, 2016) | |

I have a doubt. What is the shape of rainfall? Can anyone tell me? |

Gunjan said: (Dec 31, 2016) | |

In a shower, 5 centimetres of rainfall find the volume of water that falls on 2 hectares of land. Find the answer. |

Leo said: (Feb 6, 2017) | |

@Gunjan. 1000 cu.m. |

Rakesh said: (Mar 5, 2017) | |

How can I recognised that volume = area * depth and depth from where found please give me the answer if anybody know? |

Rushad said: (Mar 20, 2017) | |

Thankyou so much @Divya. |

Arpita said: (Apr 3, 2017) | |

Thanks for all the given explanation. |

Rekha said: (Apr 4, 2017) | |

Thanks for all the given explanation. |

Ahad said: (Apr 13, 2017) | |

Thanks for giving the explanation. |

Sougata said: (Apr 27, 2017) | |

If the rain is falling vertically. And the area covered is base then it's forming a right angle tri angle, So we know v=length * breadth * height. Also, that length*breadth = area. So, V = 15000 * 0.05, So, v = 750. |

Abhishikth said: (May 3, 2017) | |

Thank you for the given explanation. |

Mr.Mp said: (Aug 26, 2017) | |

Centi is 10 power -2 which is 1/100. |

Haneesha said: (Oct 11, 2017) | |

At last how did it change into metre (cube)? |

Manjusha said: (Dec 21, 2017) | |

Thanks for the explanations. |

Aaradhya said: (Jan 29, 2018) | |

Good @Divya. |

Arvind said: (Jan 29, 2018) | |

cu =cubic meter. |

Bharath M S said: (Mar 7, 2018) | |

Thanks for the explanation. |

Tanveer said: (Feb 16, 2019) | |

Volume = l * b * h. |

Tanveer said: (Feb 16, 2019) | |

Metre^3 is the unit of volume. |

B A Naidu said: (Jun 9, 2019) | |

Thanks for explaining, @Divya. |

Keshav said: (Jun 17, 2019) | |

Height is taken 5cm, because the flow rate is assumed constant over the entire surface on which the rain falls. |

Ashish Kumar said: (Jun 27, 2019) | |

Thanks @Divya. |

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