The transportation team transported 89 tons of goods on the first day, and the total cargo transported in the second and third days was 45 tons more than twice that of the first day. How many tons of cargo does the fleet transport on average per day?
运输队第一天运货物89吨，第二、三两天共运货比第一天的2倍多45吨．运输队平均每天运送货物多少吨？
<gadget id="calculator">89 * 2</gadget>
<output>178</output>

<gadget id="calculator">178 + 45 + 89</gadget>
<output>312</output>

<gadget id="calculator">312 / 3</gadget>
<output>104</output>

<result>104</result>