A bottle of eye drops contains 14ml, 5 drops of eye drops is 1ml, one drop in each eye every morning, how many days can this bottle of eye drops last?
一瓶眼药水有14ml，5滴眼药水为1ml，每天早上双眼各滴一滴，这瓶眼药水能用多少天．
<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">14 * (5/2)</gadget>
<output>35</output>

<result>35</result>