1.

 For a shrinkage stope the following data values are given Insitu tonnage                   9000 tonne Insitu grade                       5.2 g/tonne Average grade of waste  1.4 g/tonne Loss of ore in the stope  10% Dilution                              20% The grade at the mill-head in g/tonne is ________

A. 4.5 to 4.518
B. 4.2 to 4.215
C. 6.3 to 6.344
D. 1.3 to 1.367
Answer» B. 4.2 to 4.215


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