Question 650Navigation General

The correct answer is D) 4°03'E. The explanation is as follows: 1. The chart indicates the variation was 3°45'E in 1988, and the annual change is increasing by 6'. 2. To calculate the variation in 1991, we need to add the annual change for the 3 years between 1988 and 1991. 3 years x 6' per year = 18', which is equal to 0°18'. Adding this to the 1988 variation of 3°45'E gives us a 1991 variation of 4°03'E. 3. The other options are incorrect because A) 3°27'E is too low, B) 3°27'W is the opposite direction, and C) 3°45'E is the 1988 value without the annual change accounted for.