There is a water inlet pipe a in a pool, which takes in (25/3) liters of water per minute, and water outlet pipe b discharges 50 liters of water per minute. There is 50 liters of water in the pool, and the two pipes are opened at the same time. How many minutes will there be no water in the pool?
一水池有a进水管，每分钟进水(25/3)升，b出水管每分出水50升，池内原有50升水，两管同时打开，几分钟池内无水？
<gadget id="calculator">25 / 3</gadget>
<output>25/3 = around 8.333333</output>

<gadget id="calculator">50 - (25/3)</gadget>
<output>125/3 = around 41.666667</output>

<gadget id="calculator">50 / (125/3)</gadget>
<output>6/5 = around 1.2</output>

<result>6/5 = around 1.2</result>