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:
20 cm
25 cm
35 cm
50 cm
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:
26 comments Page 1 of 3.

Anshik said:   1 decade ago
how have they taken out the rise in water level......
(1)

Deepak said:   1 decade ago
@anshik

They simply used the formula l*b*h, here u need too find the height=total water /l*b

Prabhjeet said:   1 decade ago
Thanks deepak.

Riya said:   1 decade ago
@riya
deepak thanku...

Rahul said:   1 decade ago
L*b*h=Total water displaced=200(given)
now we have to find height i.e rise in the water level
h=200/L*B
H=25cm

Priya said:   1 decade ago
How water displacement is equal to the total volume of the tank along with the height as the rise of water?

Somini said:   1 decade ago
Water displaced is only equal to the rise in water level but not to the total volume of tank.

Arun said:   10 years ago
How can a man displace 4000 liters?

Riya said:   9 years ago
Which shape of tank will be considered?

Riya said:   9 years ago
I didn't understand this, Please explain this once.


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