The fruit store bought 150 kilograms of bananas and 50 kilograms more apples than double the amount of bananas. How many bananas and apples were bought in total?
水果店购进香蕉150千克，购进的苹果比香蕉的2倍还多50千克，购进香蕉、苹果一共多少？
<result>550</result>