Answer 9.

Victoria summer time
0141 6.0

0756 0.5

Range = 5.5m, greater than average spring tide.

0541 = HW+4 hours

Diamond B = 342°T 3.9kn or 2.0kn.

Extrapolate for range = 4.4kn.

Sometimes the rate will be greater than the spring figure, remember the tabulated figures are the average, some tides must be stronger.