The fruit shop buys back 150 kilograms of bananas, and buys back 50 kilograms of apples, which is three times more than bananas. How many kilograms of bananas and apples are bought in total?
水果店购回香蕉150千克，购回苹果比香蕉的3倍还多50千克，购回香蕉、苹果一共多少千克？
<gadget id="calculator">150 * 3</gadget>
<output>450</output>

<gadget id="calculator">450 + 50 + 150</gadget>
<output>650</output>

<result>650</result>