Question

A pipe can empty a tank 5 litres per hour. how muvh time it will take to empty 1/4th of the tank of capacity 80 litres water

Answer 1

Capacity of tank = 80 litres

1/4 th of 80 = 1 / 4 × 80

= 20 litres

Now the pipe takes 1 hr to empty litres

For 20 litres it would take = 20 / 5 = 4hr

So the answer is 4hrs.


Hope it helps you :-)

Have a good day .

Answer 2

The pipe will take 4 hours to empty $\dfrac{1}{4}$th of the tank of capacity 80 litres.

Step-by-step explanation:

Given, the capacity of the tank = 80 litres

Then, $\dfrac{1}{4}$th of the tank

= $\dfrac{1}{4}$ of 80 litres

= $\dfrac{1}{4}$ × 80 litres

= 20 litres

Now, a pipe can empty a tank by 5 litres water per hour.

∴ to empty 1 litre water, the tank will take $\dfrac{1}{5}$ hour

∴ to empty 20 litres water, the tank will take 20 × $\dfrac{1}{5}$ hours = 4 hours

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