Find the missing information from the following : Group II 150 (N2) Group III 250 ( N3) Combined Group I 100( N,) 500 (N, + N2 +N3) 60 (X ) 50 (X) 100 (o = 10) 55 (X2) 121 (0= 11) ? (X 123= ?) ? O123= ? 144 oz = 12

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