500 person took a dip in a rectangular tank which is 80 m long 50m wide what is the rise in water level of water in the tank of average displacement by a person is 0.04m^3

So, this is a question that strictly relates to physics. 

1st: multiply the average displacement by the number of people. 

2nd: Divide this number by 80x40m^2 which will find the height .

In case you want more detail, please rate it well and send a message to me. I will calculate it for you. 

C.

Step-by-step explanation:

Take the first two numbers of 486.

How many times does 12 fit into 48?

4 times.

Since all of the estimations do not have any form of individual single digits (as they do normally), we would dismiss the 6 and use its place just as a '0.'

40.

Hope this helped!