Two people, A and B, start from two places at the same time and walk towards each other. The distance is 60 kilometers. A walks 4 kilometers per hour, B walks 6 kilometers per hour, B takes a puppy, and the puppy walks 10 kilometers per hour. ． The puppy and B set off at the same time. When it meets A, it turns around and goes back. When it meets B, it goes to A's side until the two meet. Ask, how many kilometers did the puppy walk in total?
甲乙两人分别同时从两地出发，相向而行，距离是60千米，甲每小时走4千米，乙每小时走6千米，乙带一小狗，小狗每小时走10千米．小狗和乙同时出发，碰到甲时它就掉头往回，碰到乙又往甲这边走，直到两人相遇．问，小狗一共走了多少千米路？
<gadget id="calculator">4 + 6</gadget>
<output>10</output>

<gadget id="calculator">60 / 10</gadget>
<output>6</output>

<gadget id="calculator">10 * 6</gadget>
<output>60</output>

<result>60</result>