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The caterpillar of stem borer bores into central shoot of paddy seedling and causes drying of the central shoot known as “dead heart”. When stem borer attacks in flowering stage, it causes whitehead.
Pipe ‘A’ can fill a tank in 15 hours whereas leak ‘A’ can empty it in 45 hours. If they both operate along with pipe ‘B’, then the given tan...
In what time would a Cistern be filled by three pipes whose diameter are 2cm, 2 2/3cm and 4cm running together, where the largest pipe alone fill it in ...
Pipe ‘A’ can fill a tank in 20 hours while pipe ‘B’ takes 25 hours to empty it. Pipe ‘A’ is opened alone when the tank was empty and after 1...
Pipe ‘A’ can fill a tank in 60 hours whereas leak ‘A’ can empty it in 70 hours. If they both operate along with pipe ‘B’, then the given tan...
Three taps A, B and C can fill a tank in 10, 18 and 6 hours, respectively. If B is open all the time and A and C are open for one hour each alternativel...
A tank has two inlet pipes, A and B, and one outlet pipe, C. Pipe A can fill the tank in 6 hours, and pipe B can fill the tank in 8 hours. Pipe C can em...
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 ...
Pipe ‘A’ takes 20 minutes to fill a tank. Pipe ‘B’ takes 35 minutes to empty the same tank. If pipe ‘B’ is opened 17 minutes after pipe ‘A...
Pipes A and B can fill a tank in 12 minutes and 15 minutes, respectively, while outlet pipe C can empty the entire tank in 1 hour. All three pipes are ...
Pipe ‘A’ and pipe ‘B’, together can fill 20% of a tank in 8 hours while pipe ‘C’ takes 50 hours to empty it. ...