Ratios & Percentageshard
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A tank has two pipes, A and B. Pipe A fills it in hours, B drains it in hours. If the tank is full and both are opened, what percentage of the tank is filled after hours?
A tank has two pipes, A and B. Pipe A fills it in hours, B drains it in hours. If the tank is full and both are opened, what percentage of the tank is filled after hours?