Question
Answer these questions based on the following
information. There are 4 red balls, 4 green balls and 6 blue balls, in a box If one ball is drawn randomly, what is the probability that it is either red or blue?Solution
The correct answer is D
Pipe βAβ and pipe βBβ can fill a cistern in 20 minutes and 12 minutes respectively. Pipe βCβ alone can empty the cistern in 10 minutes. If a...
A tank is filled by three pipes A, B, and C. Pipe A can fill the tank in 12 hours, pipe B in 16 hours, and pipe C can empty the tank in 8 hours. If all ...
Pipe βAβ and pipe βBβ, together can fill 20% of a tank in 5 hours while pipe βCβ takes 37 hours to empty it. Pipe βAβ and pipe βBβ w...
Pipe X can fill a tank in 15 hours and pipe Y in 30 hours. If both the pipes are opened in an empty tank, how much time will they take to fill it?
There are three taps with diameters of 3cm, 4cm, and 5cm respectively. The ratio of the water flowing through them is equal to the ratio of the square o...
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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 X can empty a completely filled tank in 60 hours. Pipe Y and X together can fill an empty tank completely in (z+6) hours. The efficiency of pipe Y ...
Pipe βXβ and pipe βYβ can fill a tank in 30 hours and 45 hours respectively. Pipe βZβ is 20% more efficient than pipe βXβ. If pipe βYοΏ½...
Two pipes can alone independently fill a bucket in 10 and 12 minutes. Both are opened together for 3 minutes after which the second pipe is turned off. ...
