Logical Reasoning: Practice Problems

Answer the following questions on Logical Puzzles based on the instructions given
  1. RQP, ONM, LKJ, _____, FED
    A. IHG
    B. CAB
    A. JKL
    B. GHI
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    Sol: Option A
    This sequence consists of letters in the reverse alphabetical order
  2. KBJ, LCK, MDL, NEM, _____
    A. OEP
    B. OFN
    C. MEN
    D. PFQ
    Sol: Option B
    This series is an alternating series in alphabetical order. The 2nd letters follow the order BCDEF. The 1st and 3rd letters are alphabetical beginning with K. The 3rd letter is repeated as a 1st letter in each subsequent 3-letter segment.
  3. Team A has scored more goals than Team B
    Team C has scored fewer goals than Team B
    Team A has scored fewer goals than Team C.
    If the first two statements are true, the third statement is
    A. True
    B. False
    C. Uncertain
     
    Sol: Option B
    From the first two statements, we know that of the three teams, Team A has the scored the highest number of goals, so the third statement is necessarily false.
  4. CDC, EFE, GHG, IJI
    A. KLK
    B. HJH
    C. IJI
    D. JHJ
    Sol: Option A
    This sequence consists of a simple alphabetical order with the first 2 letters of all segments: C, D, E, F, G, H, I, J, K, L. The third letter of each segment is a repetition of the 1st letter.
  5. Find the next number in the sequence:
    3, 6, 9, 30, 117......
    A. 192
    B. 352
    C. 388
    D. 588
    Sol: Option D
    3 * 1 + 3 = 6
    6 * 2 – 3 = 9
    9 * 3 + 3 = 30
    30 * 4 – 3 = 117
    117 * 5 + 3 = 588
  1. Raju weighs less than Farhan.
    Raju weighs more than Bunty.
    Of the three friends, Bunty weighs the least.
    If the first two statements are true, the third statement is
    A. True
    B. False
    C. Uncertain
     
    Sol: OptionA
    According to the first two statements, Farhan weighs the most and Bunty weighs the least.
  2. Find the next number in the sequence:
    104, 109, 115, 122, 130.....
    A. 119
    B. 125
    C. 139
    D. 134
    Sol: Option C
    104 + 5= 109
    109 + 6 = 115
    115 + 7 = 122
    122 + 8 = 130
    130 + 9 = 139
  3. Find the next number in the sequence:
    26, 63, 124, 215, 342.....
    A. 416
    B. 511
    C. 686
    D. 559
    Sol: Option B
    All the numbers in the sequence are 1 less than the cubes of 3, 4, 5, 6, 7, 8. Therefore, 511 is the answer.
  4. . Find the next number in the sequence....
    15, 31, 63, 127, 255.
    A. 110
    B. 170
    C. 511
    D. 181
    Sol: Option C
    15 * 2 + 1 = 31
    31 * 2 +1 = 63
    63 * 2 + 1= 127
    127 * 2 + 1= 255
    255 * 2 + 1 = 511
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  6. John has more coins than Sonu.
    Sonu has fewer coins than Danish.
    Danish has more coins than John.
    If the first two statements are true, the third statement is
    A. True
    B. False
    C. Uncertain
    Sol: Option B
    If the first two sentences are true, both John and Danish have more coins than Sonu. However, it is uncertain as to whether Danish has more coins than John.
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