The fruit shop shipped 18 boxes of oranges and 22 boxes of apples. Each box of the two fruits weighed 15 kilograms. How many kilograms did the oranges and apples weigh in total?
水果店运来桔子18箱，苹果22箱，两种水果每箱的重量都是15千克，运来的桔子和苹果一共重多少千克？
<gadget id="calculator">18 + 22</gadget>
<output>40</output>

<gadget id="calculator">40 * 15</gadget>
<output>600</output>

<result>600</result>