Logical Problems


Direction: Fill in the blanks in the middle of the series.

  1. JAK KBL LCM MDN _____









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    This is an alternating series in alphabetical order. The middle letters follow the order ABCDE.

    Correct Option: B

    This is an alternating series in alphabetical order. The middle letters follow the order ABCDE. The first and third letters are alphabetical beginning with J. The third letter is repeated as a first letter in each subsequent three-letter segment.


  1. QPO NML KJI _____ EDC









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    This series consists of letters in a reverse alphabetical order.

    Correct Option: A

    This series consists of letters in a reverse alphabetical order.



Direction: Look carefully for the pattern, and then choose which pair of numbers comes next. Note also that you will be choosing from five options instead of four.

  1. 32 , 31 , 32 , 29 , 32 , 27 , 32











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    This is an alternating repetition series.

    Correct Option: A

    This is an alternating repetition series. The number 32 alternates with a series in which each number decreases by 2.


  1. 10 , 34 , 12 , 31 , 14 , 28 , 16











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    Two patterns alternate here. The first pattern begins with 10 and adds 2 to each number to arrive at the next;

    Correct Option: A

    Two patterns alternate here. The first pattern begins with 10 and adds 2 to each number to arrive at the next; the alternating pattern begins with 34 and subtracts 3 each time.



  1. 17 , 32 , 19 , 29 , 21 , 26 , 23











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    Here, there are two alternating patterns.

    Correct Option: C

    Here, there are two alternating patterns. The first begins with 17 and adds 2; the second begins with 32 and subtracts 3.