There are three baskets of pears: large, medium, and small. The middle basket contains twice as many pears as the small basket, and 8 kg less than the large basket. The large basket contains four times the small basket. How many kilograms of pears does the medium basket hold?
有大、中、小三筐梨，中筐的梨是小筐的2倍，而比大筐少装8千克，大筐装的是小筐的4倍，中筐装梨多少千克？
<result>8</result>