A and B travel towards each other from AB at a speed of 4 kilometers and 5 kilometers per hour respectively. After meeting, they continue to move forward. If A travels from the meeting point to B for 5 hours, then the two places AB How many kilometers apart?
甲乙二人分别以每小时4千米和5千米的速度从AB两地相向而行，相遇后二人继续往前走，如果甲从相遇点到达B地共行5小时，那么AB两地相距多少千米？
<gadget id="calculator">4 + 5</gadget>
<output>9</output>

<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">5 / (5/9)</gadget>
<output>9</output>

<gadget id="calculator">4 * 9</gadget>
<output>36</output>

<result>36</result>