There are 6.2 tons of coal in a cafeteria, and 1 ton is left after burning for 4 days. How many tons of coal are burned on average every day?
一个食堂有6.2吨煤，烧了4天后还剩下1吨，平均每天烧煤多少吨？
<gadget id="calculator">6.2 - 1</gadget>
<output>5.2</output>

<gadget id="calculator">5.2 / 4</gadget>
<output>1.3</output>

<result>1.3</result>