Using the Guidance Manual for Loading the M.V. Grand Haven,§determine the amount of ballast required in tank No. 7 (P&S)§to maintain drafts of 17'-00" forward and 22'-06" aft for a§vessel loaded with grain which has a test weight of 31lbs.

A
410 tons each
B
480 tons each
C
499 tons each
D
501 tons each
E