On 2 April your 0900 zone time DR position is LAT 28°04.0'S, LONG 94°14.0'E. Your vessel is on course 316°T at a speed of 18.5 knots. What is the zone time of local apparent noon (LAN)?

Correct Answer: Option C — 1149

The DR position is 94°14.0'E, which is 4°14.0' west of the 90°E zone meridian. Converting this to time and accounting for the vessel's speed of 18.5 knots on course 316°T, the vessel reaches the meridian at 1149. This follows standard celestial navigation time-keeping procedures for determining LAN.