Question
A pipe fills a tank in 20 hours, and another pipe
empties it in 30 hours. If both pipes are opened together, how long will it take to fill the tank?Solution
The rate of the filling pipe is 1/20. The rate of the emptying pipe is 1/30. Net rate = (1/20 - 1/30) = 1/60. Time taken = 60 hours. Correct Option: d) 60 hours
In insect flight, what term is used to describe the upward movement of wings during each stroke?
Raphanus sativas L is the botanical name of:Â
At what PF wilting percentage arrives
Which instrument can be used to detect water adulteration in milk?
The total age of rice seedling for transplanting in main field through double transplanting method
The seedlings are first hardened before transplanting ,The process of hardening seedlings improves :
 National Seed Corporation was established in.Â
Which one of the following is not a biological control agent:
In oxygenic photosynthetic organism, photosynthetic pigment is located in ___________
‘Khaira disease’ (also known as iron rust) of rice is caused due to:
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