Series Completion - Verbal and Reasoning

Directions to SolveChoose the correct alternative that will continue the same pattern and replace the question mark in the given series.
Q1:

10, 100, 200, 310, ?

A 400

B 410

C 420

D 430

ANS:D - 430

Explanation: The pattern is + 90 + 100, + 110,..... So, missing term = 310 + 120 = 430.