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:

125,80,45,20,?

A 5

B 8

C 10

D 12

ANS:A - 5

Explanation: The pattern is - 45, - 35, - 25, ..... So, missing term = 20 - 15 = 5.