Question

10. A CFL factory uses 24,325.208 l of water in 4 hours. How much water does the factory use in 3 hours?​

Answer 1

Answer:

Radius of hemispherical tank, r=7 m

So volume of water to be pumped = Volume of hemispherical tank −50 kl

∵1 kl=1 m

3

⇒

3

2

πr

3

−50 m

3

⇒

3

2

×

7

22

×(7)

3

−50 m

3

⇒718.67−50 m

3

⇒668.67 m

3

Answer 2

Answer: The factory uses 18243.906 litres of water in 3 hours.

Step-by-step explanation:

Given that, amount of water used in 4 hours = 24,325.208 litres

Therefore, amount of water used in 1 hour = $\frac{24,325.208}{4}$ litres

                                                                       = 6081.302 litres

Now, if water used in 1 hour is 6081.302 litres,

then, amount of water used in 3 hours = 6081.302 x 3

                                                                = 18243.906 litres

Hence the factory uses 18243.906 litres of water in 3 hours.