Two ships, A and B, set off at the same time from two east and west ports that are 224 kilometers apart. It is known that ship A travels 35 kilometers per hour, and ship B’s speed is (3/5) that of ship A. Find how many hours later the two ships meet ?
甲、乙两艘轮船同时从相距224千米的东西两港相对出发，已知甲船每小时行35千米，乙船速度是甲船的(3/5)，求几小时后两船相遇？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">35 * (3/5)</gadget>
<output>21</output>

<gadget id="calculator">35 + 21</gadget>
<output>56</output>

<gadget id="calculator">224 / 56</gadget>
<output>4</output>

<result>4</result>