1) 50
2)Sh
3) 5.9
4) (16*2+5*12+7*8+10*14)/(16+12+8+14) =288/50=5.76
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1) 50
2)Sh
3) 5.9
4) (16*2+5*12+7*8+10*14)/(16+12+8+14) =288/50=5.76