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Start learning 50% faster. Sign in now=> (x + 3)/(x – 2) = 6/5 => 5x + 15 = 6x – 12 => x = 27 Mean proportional to x and 9x = √(x×9x) = 3x = 3×27 = 81
There are two pipes A & B, pipe A is for filling the swimming pool and pipe B is to empty the swimming pool. Capacity of swimming pool is 15120 m 3...
A tank is filled by two pipes A and B in 12 minutes and 15 minutes, respectively. Another pipe C can empty the tank in 10 minutes. If all three pipes ar...
P, Q and R three pipes connected to a tank. P and Q together fill the tank in 30 hours, Q and R together fill the tank in 40 hours. P and R together fil...
Two vessels 'A' and 'B' contains 480 litres, each of pure milk and pure water, respectively. 120 litres of milk is withdrawn from vessel 'A' and poured ...
Two inlet pipes M and N alone can fill a tank in 10 hours and 12 hours respectively and an outlet pipe P alone can empty the whole tank in 5 hours. Firs...
Tap A and Tap B fill a drum of volume 408 liters in 12 minutes. If their efficiencies are in the ratio x:y respectively and B alone takes to fill the ci...
Pipe P can fill half of the tank in 8 hrs 5 min and pipe Q can fill the same tank completely in 16 hrs 5 min. Another pipe R can empty the full tank in ...
Pipe ‘A’ can fill a tank in 6 hours whereas pipe ‘B’ can empty it in 18 hours. If both pipes are opened together while pipe ‘B’ is closed af...
Pipe ‘A’ and pipe ‘B’ can fill a cistern in 20 minutes and 18 minutes respectively. Pipe ‘C’ alone can empty the cistern in 12 minutes. If a...
