Question

water is flowing at the rate of 3 km per hour through a circular pipe of 20cm internal diameter into a circular cistern of diameter 10m and depth 2m in how much time will the cistern be filled

Answer 1

1. Convert the speed at which the water is flowing out into m/s
2. Find the area of cross section of the pipe
3. Find the volume of water flowing out of the pipe per second
4. Find the volume of the cistern
5. Divide volume of cistern by volume of water flowing out per second

Answer 2

sry for the clearity of photo

Hope understand
Thanks
Plz Mark me as the BRAINLIEST