Please help me answer this

Question

. You are loading in a port subject to the tropical load line mark and bound for a port subject to the summer load line mark. You will enter the summer zone after steaming 3 days. You will consume 25 tons of fuel, water and stores per day. The hydrometer reading at the loading pier is 1.010 and the average TPI is 53

. The following data is extracted from the load line certificate:

Freeboard from Deck line                    Load Line

Tropical                69”         (T)                  7” above (s)

Summer               76”         (S)                                         *

Winter                  83”         (W)               7” below (s)

Allowance for fresh water all freeboards    6”

*Upper edge of line at level of centre ring.

What is the minimum freeboard at the start of the voyage?