Aptitude - Volume and Surface Area - Discussion
Discussion Forum : Volume and Surface Area - General Questions (Q.No. 7)
7.
50 men took a dip in a water tank 40 m long and 20 m broad on a religious day. If the average displacement of water by a man is 4 m3, then the rise in the water level in the tank will be:
Answer: Option
Explanation:
Total volume of water displaced = (4 x 50) m3 = 200 m3.
 Rise in water level = |
 |
200 |  m 0.25 m = 25 cm. |
| 40 x 20 |
Discussion:
29 comments Page 2 of 3.
Akhil said:
8 years ago
Thanks @Swarna.
Khushi said:
6 years ago
How it is 0.25? I don't understand clearly, plz explain it once.
Nisma said:
6 years ago
@Khushi.
By calculating h, we get;
h=200/20*40,
= 1/4,
= 0.25.
By calculating h, we get;
h=200/20*40,
= 1/4,
= 0.25.
Bavithra said:
5 years ago
Why not we consider a cylindrical shape tank? Then the volume for the cylinder is different.
Palash said:
4 months ago
Where does 4 * 50 came from, 50 is the number of man not a unit.
Water displacement is given, which means the difference of volume is given,
And the rise of the water level means the difference in height.
4m^3 = 40 * 20 * (height difference).
Rise of water level = 0.5 cm.
Water displacement is given, which means the difference of volume is given,
And the rise of the water level means the difference in height.
4m^3 = 40 * 20 * (height difference).
Rise of water level = 0.5 cm.
Palash said:
4 months ago
Please give the clear explanation.
Ausi said:
1 month ago
Volume of the cuboid is = l * b * h.
200 meters cube = 40 * 20 * h.
h = 200/(40*20) m.
h = 0.25 m.
h = 25 cm.
200 meters cube = 40 * 20 * h.
h = 200/(40*20) m.
h = 0.25 m.
h = 25 cm.
Nikhita said:
8 years ago
Why should we consider the shape as cuboid?
Praveen said:
9 years ago
Nice explanation. Thanks @Swarna.
Salini said:
9 years ago
Thank you very much @Deepak.
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