Question
Which of the following micro-organism used for nitrogen
fixation and is micro aerophillicSolution
Azospirillum is micro aerophillic ( it needs less oxygen concentration than aerobic microbes to survive) is used for nitogen fixation in wheat crop.
Three pipes A, B, and C can fill a tank in 24 minutes, 36 minutes, and 48 minutes respectively. All are opened together. A is closed after 'n' minutes, ...
Pipe A fills a tank in 24 hours. Pipe A and B together fill it in 8 hours. Pipe B and C together also fill it in 8 hours. Find the time taken by A, B an...
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...
Tap A and Tap B fill a drum of volume 425 liters in 17 minutes. If their efficiencies are in the ratio x:y respectively and B alone takes to fill the ci...
Taps Q and R can fill a tank in 24 minutes and 32 minutes, respectively. The efficiency of tap S is 75% greater than that of tap Q. If tap R's efficienc...
Pipes P and Q can fill a tank in 12 hours and 15 hours respectively, while a third pipe C can empty the tank in 24 hours. If all three pipes are opened ...
Pipe ‘P’ and pipe ‘Q’ together can fill an empty tank in 18 hours while pipe ‘Q’ and pipe ‘R’ together take 12 hours to fill the same ta...
Pipe A and Pipe B together can fill the tank in 20 hours. The capacity of the pipe A is 40% of the capacity of the pipe B. How much time will pipe B alo...
- Pipes K and L alone can fill a tank in 4 hours and 6 hours respectively. When both pipes along with pipe M, an outlet pipe, are opened together, 3/4 of the...
Pipe ‘A’ can fill a tank in 20 hours while pipe ‘B’ takes 40 hours to empty it. Pipe ‘A’ is opened alone when the tank was empty and after 1...
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