This is simply a piece-wise addition. You are going from 22.27 to -6.20 in latitude, and from 114.15 to 106.80 in longitude. Do the mathematics, and you get -28.47 degrees of latitude, and -7.35 degrees of longitude.
-28.47 degrees of latitude, and -7.35 degrees of longitude
Permutation: In a race of 10 students, find the number of ways students can finish 1st, 2nd, and 3rd. In this case the order matters, so it is a permutation.
10 x 9 x 8 = 720 ways
Combination: In a class of 10 students, find the number of ways a group of 3 students can be selected to win a prize. In this case the order doesn't matter, so it's a combination.
10 x 9 x 8 / (3 x 2 x 1) = 120 ways
The central number in a geometric progression which indicates the central tendency or typical value of a set of numbers by using the product of their values as opposed to the arithmetic mean which uses their sum.
