Question

time taken to fill a water tank of size 2m×1.5m×1m by a tap with speed 20 litre / minute is
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Answer 1

Answer:

150 minutes

Step-by-step explanation:

volume of tank = 2×1.5×1 = 3 m³

but 1m³= 1000 Litres

so, 3m³= 3000 L

time taken = 3000/20 =150 mins

Answer 2

SOLUTION

TO DETERMINE

Time taken to fill a water tank of size 2m × 1.5m × 1m by a tap with speed 20 litre / minute

EVALUATION

Here it is given that the dimension of the water tank is 2m × 1.5m × 1m

So volume of the water tank

= 2m × 1.5m × 1m

= 3 m³

= 3 × 1 m³

= 3 × 1000 liter

= 3000 liter

Now it is given that the speed of the tap 20 litre / minute

Let required time = t minutes

So by the given condition

20t = 3000

⇒ t = 150

FINAL ANSWER

The required time = 150 minutes

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