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  • Directions for question : The graph below shows the varying rate of flow of water (litres/min) through a pipe used to fill a reservoir : <img alt="" src="h

Directions for question :

The graph below shows the varying rate of flow of water (litres/min) through a pipe used to fill a reservoir :

Whenever the rate of flow of water changed it did so at a uniform rate, as is apparent from the graph. The reservoir was completely filled up from being empty in the above eight hours.

Question :

What volume of water (in litres) was filled in the last thirty minutes ?  

Option: 1

 75 litres


Option: 2

-


Option: 3

-


Option: 4

-


Answers (1)

best_answer

The volume is shown by the region XYZ below :

Hence, the required volume = (1/2)*5*30 = 75 litres

 

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