Use reasoning to lead to the answer of the following question:
30 pens and 75 pencils were purchased for 750. If the average price of a pencil was 2.00, find the average price of a pen.\nOptions:\n(A) 20\n(B) 11\n(C) 12\n(D) 13\n(E) 14

(A)
Since average price of a pencil = 2\n∴ Price of 75 pencils = 150\n∴ Price of 30 pens = (750 – 150) = 600\n∴ Average price of a pen = 600⁄60 = 20.

Therefore, the answer is (A)