What is the correct term that is wrong in the series: 140, 340, 540, 730, 940, 1140?

(A) 830
(B) 730
(C) 550
(D) 630

🧠 Explanation (Math):

Given: Wrong term in 140, 340, 540, 730, 940, 1140
Step 1: Expected +200 each step; 730 is off
Final Answer: 730