A bus runs between Dezhou and Jinan. The one-way fare is 46 yuan each. Carrying 47 passengers from Dezhou to Jinan, and 43 passengers on the return journey, how much is the income of this car for one round trip?
一辆客车往返德州和济南之间．单程票价每张都是46元．从德州去济南载客47人，返程载客43人，这辆车往返一次的收入是多少元？
<gadget id="calculator">46 * 47</gadget>
<output>2_162</output>

<gadget id="calculator">46 * 43</gadget>
<output>1_978</output>

<gadget id="calculator">2_162 + 1_978</gadget>
<output>4_140</output>

<result>4_140</result>