5 boxes of bees can produce 375 kg of honey a year. According to this calculation, how many kilograms of honey can be brewed by 20 boxes of bees?
5箱蜜蜂一年可以酿375千克蜂蜜．照这样计算，20箱蜜蜂可以酿多少千克蜂蜜？
<result>20</result>