Question

45. To fill a rectangular tank of area
700 m2, 140 m3 of water is required.
What will be the height of the water
level in the tank?
(1) 10 cm
(2) 20 cm
(3) 30 cm
(4) 40 cm​

Answer 1

Solution :-

Given

Area of the rectangular tank i.e base = 700 m²

Volume of the rectangular water tank = 140 m³

Let the height of the water tank be 'h' m

We know that

Volume of the rectangular water tank = Area of the base * Height

⇒ 140 = 700 * h

⇒ 140/700 = h

⇒ 14/70 = h

⇒ 1/5 = h

⇒ h = 1/5 m

Height of the water tanks is 1/5 m

But we want the answer in cm

Converting height m to cm

1 m = 100 cm

1/2 m = (100 * 1/5) = (100/5) m = 20 cm

Therefore the height of the water tank is 20 cm i.e Option(2)

Answer 2

Answer:

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