steelmaking furnace in a steelmaking plant produces 830 kilograms of steel per day for the first 3 days, and 850 kilograms of steel per day for the next 5 days. How many kilograms of steel is produced on average per day?
炼钢厂的一座炼钢炉，前3天每天炼钢830千克，后5天每天炼钢850千克，求平均每天炼钢多少千克？
<gadget id="calculator">830 * 3</gadget>
<output>2_490</output>

<gadget id="calculator">850 * 5</gadget>
<output>4_250</output>

<gadget id="calculator">2_490 + 4_250</gadget>
<output>6_740</output>

<gadget id="calculator">3 + 5</gadget>
<output>8</output>

<gadget id="calculator">6_740 / 8</gadget>
<output>1_685/2 = around 842.5</output>

<result>1_685/2 = around 842.5</result>