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Volume of the hemisphere = (2/3) * π * r³ Where r = 10 cm: Volume = (2/3) * π * (10³) = (2/3) * π * 1000 = (2000/3)π cm³. Volume of the cylinder = π * r² * h Where r = 5 cm: (2000/3)π = π * (5²) * h (2000/3) = 25h h = (2000/3) / 25 = 26.67 cm. Correct option: b) 26.7 cm
Pipe A can fill a tank in 10 hours, whereas pipe B can empty the same tank in 12 hours. If the two pipes are operated alternately for one hour each, sta...
Tap A can fill tank X in 20 minutes, but with a leakage (tank Y), it takes 33(1/3) minutes to fill. Tap B operates at 20% less efficiency than Tap A. De...
Pipe ‘A’ can fill a tank in 25 hours while pipe ‘B’ takes 30 hours to empty it. Pipe ‘A’ is opened alone when the tank was empty and after 1...
Pipe ‘A’ can fill a tank in 20 hours while pipe ‘B’ takes 30 hours to empty it. Pipe ‘A’ is opened alone when the tank was empty and after 1...
Pipes ‘A’ and ‘B’ can fill a tank in 6 hours and 9 hours, respectively. If pipe ‘C’ is opened along with pipes ‘A’ and ‘B’, then the...
Pipe ‘A’ can fill a tank in 20 hours while pipe ‘B’ takes 32 hours to empty it. Pipe ‘A’ is opened alone when the tank was empty and after 1...
Two pipes, A and B, can independently fill the tank in 18 minutes and 20 minutes respectively, while pipe C can empty 8 gallons from the tank in 3 minut...
Two pipes, A and B, can independently fill the tank in 15 minutes and 20 minutes respectively, while pipe C can empty 7 gallons from the tank in 2 minut...
The work done by a man, a woman and a child are in the ratio of 4 :3: 1. There are 15 men, 20 women and 30 children in a factory. Their weekly wages amo...
