The fruit shop brings grapes and oranges. The weight of grapes is 9 kilograms. The weight of oranges is three times that of grapes. How many kilograms are there in total for grapes and oranges?
水果店运来葡萄和桔子，葡萄有9千克，桔子的重量是葡萄的3倍，葡萄和桔子一共有多少千克？
<gadget id="calculator">9 * 3</gadget>
<output>27</output>

<gadget id="calculator">27 + 9</gadget>
<output>36</output>

<result>36</result>