Question
Hans Kelsen, a prominent modernist jurist, emphasised
the importance of legal norms and the hierarchical structure of legal systems. What is this theory known as?Solution
The correct answer is C
Two inlet pipes 'A' and 'B' can fill an empty tank in 36 minutes and 48 minutes, respectively. Another outlet pipe 'C' can empty the tank in 144 minutes...
- Pipe A can fill a tank in 12 hours and pipe B in 18 hours. If both the pipes are opened in an empty tank, how much time will they take to fill it?
Pipes ‘A’ and ‘B’ together can fill a tank in 18 hours, while pipe ‘B’ alone can fill it in 36 hours. If pipe ‘C’ takes 12 hours less th...
Two pipes X and Y can fill a tank in 90 minutes and 60 minutes respectively. A third pipe Z can empty the tank in 2 hours 30 minutes. X is kept closed. ...
Pipe T can empty a completely filled tank in 50 hours. Pipe R and T together can fill an empty tank completely in (z+5) hours. The efficiency of pipe R ...
A tank is filled by two pipes A and B in 12 minutes and 15 minutes, respectively. Another pipe C can empty the tank in 10 minutes. If all three pipes ar...
Three pipes A, B, and C can fill a tank in 50 minutes, 60 minutes, and 75 minutes respectively. All are opened together. A is closed after 'n' minutes, ...
Pipe 'A' and pipe 'B', alone can fill a tank in 20 minutes and 30 minutes, respectively. Both the pipes were opened together to fill the tank, but later...
Pipes ‘P’ and ‘Q’ alone can fill a tank in 10 minutes and 25 minutes, respectively, while pipe ‘R’ can empty the same tank in 50 minutes. If...
Vikas and Vishal can do a job in 7 days and 14 days respectively. They began the work together but 4 days before the completion of job, Vikas lea...
