Question

A fish tank is 40 cm by 30 cm by 30 cm water from tap flows into it at rate 6 litre per minute from 8.50 a.m. To 8.55 a.m. What fraction of tank is filled with water? How long will it take to completle fill the tank?​

Answer 1

Answer:

$\frac{1}{1200}$ of the tank is filled with water, and it will take $100$ hours to completely fill the tank.

Step-by-step explanation:

The volume is $40 \cdot 30 \cdot 30=36000$

Rate of filling is $\frac{6 litres}{minute}$

So, in 5 minutes, he fills $\frac{6 \cdot 5}{36000}=\frac{30}{36000}=\frac{1}{1200}$ of the tank.

Thus, it will take $5 \cdot 1200=6000 minutes = 100$ hours to completely fill the tank...

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