A reservoir is in the form of a rectangular parallelopiped (cuboid ) . Its length is 20m . if 18 kl of water is removed from the reservoir , the water level goes down by 15 cm . Find the width of the reservoir (1 kl = 1 m^3)

Answers (1)

Solution :  Let the width of the resevoir be x metre . If , 18 kl of water is removed from the reservoir , the water  level gose  down by 15 cm =0.15m

	herefore                 Volume of the water removed from the reservoir = (20	imes x 	imes 0.15)m^3=3x  m^3

Also ,          Volume of the water removed from the reservoir =18kl =18 m^3

	herefore              3x=18Rightarrow x=6

Hence , the width of the reservoir is 6 m. 

 

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