Question
There are four pipes A, B, C and D where A and B are used to fill the tank and C and D are used to empty the tank. Pipe A and C together can fill the tank in (a+9) hours. Pipe B alone can fill 75% of the tank in (a-1.5) hours. The efficiency of pipe C is 25% less than that of pipe
There are four pipes A, B, C and D where A and B are used to fill the tank and C and D are used to empty the tank. Pipe A and C together can fill the tank in (a+9) hours. Pipe B alone can fill 75% of the tank in (a-1.5) hours. The efficiency of pipe C is 25% less than that of pipe
B. Pipe D alone can empty half of the tank in (a-3) hours. The efficiency of pipe A is 50% more than that of pipe
B. Find out the time taken by pipe A and D together to fill the empty tank completely.
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