There are 6 baskets of fruit in a fruit shop, each containing bananas and oranges, weighing 8, 9, 16, 20, 22, and 27 kilograms respectively. Only one basket of oranges is sold that day, and the weight of bananas in the remaining five baskets is Twice the weight of oranges, ask how many baskets of bananas the fruit shop bought that day.
有一水果店进了6筐水果，分别装着香蕉和橘子，重量分别为8，9，16，20，22，27千克，当天只卖出一筐橘子，在剩下的五筐中香蕉的重量是橘子重量的两倍，问当天水果店进的有多少筐是香蕉．
<result>3</result>