There are 8 walruses in the aquarium, and a total of 170 kilograms of fish were brought in for them to eat. The 8 walruses ate a total of 80 kilograms of fish two days ago, and 2 of them were transported away two days later. How many days will the remaining fish be enough for the remaining walruses to eat?
海洋馆里有8只海象，总共运来170千克鱼给它们吃，前两天这8只海象共吃了80千克鱼，两天后把其中的2只海象运走．剩下的鱼还可以让余下的海象吃几天？
<gadget id="calculator">170 - 80</gadget>
<output>90</output>

<gadget id="calculator">8 - 2</gadget>
<output>6</output>

<gadget id="calculator">80 / 2 / 8</gadget>
<output>5</output>

<gadget id="calculator">90 / 6 / 5</gadget>
<output>3</output>

<result>3</result>