My mother bought 20 kilograms of oranges and 9 kilograms of pears, and the same amount of peaches and pears. How many kilograms of fruits did my mother buy?
妈妈买来20千克橘子和9千克梨，买来的桃子和梨同样多，妈妈买来的水果一共有多少千克？
<gadget id="calculator">20 + 9 + 9</gadget>
<output>38</output>

<result>38</result>