Question
Pipe ‘A’ can fill a tank in 12 hours whereas pipe
‘B’ can empty it in 30 hours. If both pipes are opened together while pipe ‘B’ is closed after 5 hours, then find the time taken by pipe ‘A’ to fill the rest of the tank.Solution
ATQ; Let the capacity of the tank be 60 litres. {LCM (12 and 30)} Efficiency of inlet pipe ‘A’ = (60/12) = 5 litres/hour Efficiency of outlet pipe ‘B’ = (60/30) = 2 litres/hour Combined efficiency of both pipes = (5 – 2) = 3 litres/hour Required time = {60 – (3 × 5)} ÷ 5 = 9 hours
Which among the following fungicides is non-systemic?
The value of the variable which occurs most frequently from a set of population is
Which type of pheromones act immediately and bring about rapid behavioral changes in insects upon release?
_______are plants that have chromosome numbers which are not an exact multiple of the haploid number.
Tetrazolium test is used to determine:
Parbhani Kranti is a variety of:
Which one of the following is the data distribution when mean and median values are same?
The lime loving plants have evolved a different metabolism and are tolerant of high soil pH. They are also called
Among the following, Parmigiano Reggiano is ……………..
Adding organic matter to soil typically, effects the soil density as :
