Passage

Directions : There is a wrong number in these series. Find the wrong number and pattern of the given series, and answer the question given below. Series A : 15, 23.5, 40.5, 66, 101, 142.5, 193.5 Series B : 906, 186, 66, 42, 37, 34, 33 Series C : 5, 20, 100, 356, 979, 2274, 4674

If series D follows the pattern of series C, and the first term of series D is 10, with P and Q being the third and sixth terms of series D, respectively, then find the difference between P and Q.