Number Series Interview Questions

    Question 1: Simple Arithmetic Progression

    Find the next number in the series: 3, 7, 11, 15, ?

    Question 2: Geometric Progression

    What is the next term in the series: 2, 6, 18, 54, ?

    Question 3: Squares Series

    Find the missing number in the series: 1, 4, 9, 16, 25, ?

    Question 4: Cubes Series

    Complete the series: 1000, 729, 512, 343, ?

    Question 5: Alternating Series

    Find the next number in the alternating series: 9, 12, 11, 14, 13, 16, ?

    Question 6: Alphanumeric Alternating Series

    Look at this series: F2, __, D8, C16, B32, ... What should fill the blank?

    Question 7: Mixed Operation Series (Division and Addition)

    Look at this series: 664, 332, 340, 170, ____, 89, ... What number should fill the blank?

    Question 8: Roman Numeral Arithmetic Progression

    Look at this series: V, VIII, XI, XIV, __, XX, ... What number should fill the blank?

    Question 9: Interspersed Element Series

    Look at this series: 70, 71, 76, __, 81, 86, 70, 91, ... What number should fill the blank?

    Question 10: Dual Alternating Series

    Look at this series: 8, 43, 11, 41, __, 39, 17, ... What number should fill in the blank?