Logic & Reasoning

Look at this series: VI, 10, V, 11, __, 12, III,… What number should fill the blank?

a. II
b. IV
c. IX
d. 14
  1. b. This is an alternating addition and subtraction series. Roman numbers alternate with Arabic numbers. In the Roman numeral pattern, each number decreases by 1. In the Arabic numeral pattern, each number increases by 1.

Test ID: 604
Source: 501 challenging logic & reasoning problems