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Series Completion Questions Answers

  • 1. Complete the series 2,2,5, 13,28,....

    1. 50
    2. 51
    3. 52
    4. 53
    Answer And Explanation

    Answer: Option C

    Explanation:

    \begin{aligned}
    \text{Pattern is }\\
    +1^2-1, +2^2-1, +3^2-1,+4^2-1 \\
    5^2-1 = 28 + 24 \\
    = 52
    \end{aligned}

  • 2. Which number would replace the question mark in series
    7,12,19,?,39

    1. 24
    2. 28
    3. 31
    4. 33
    Answer And Explanation

    Answer: Option B

    Explanation:

    Pattern is , +5, +7, +9
    Missing Number = 19+9 = 28

  • 3. Complete the series, 1, 4, 9, 16, 25,....

    1. 36
    2. 38
    3. 49
    4. 52
    Answer And Explanation

    Answer: Option A

    Explanation:

    Series Pattern is +3, +5, +7, +9.

    So next number = 25+11 = 36

  • 4. Complete the series
    20, 19, 17, ...., 10, 5

    1. 15
    2. 16
    3. 13
    4. 14
    Answer And Explanation

    Answer: Option D

    Explanation:

    Pattern is, -1, -2, ..,.. , -5

    So -3 and -4 will fill the blanks to make it a pattern.

    Next number will be 17-3 = 14

  • 5. 6, 11, 21, 36, 56, ?
    what will replace the question mark in the series ?

    1. 75
    2. 81
    3. 85
    4. 89
    Answer And Explanation

    Answer: Option B

    Explanation:

    Pattern is +5, +10, + 15, +20

    Next number in the series will be 56 + 25 = 81

  • 6. Complete the series
    1,6,13,22,33,...

    1. 46
    2. 48
    3. 49
    4. 51
    Answer And Explanation

    Answer: Option A

    Explanation:

    Pattern is +5, +7, +9, +11
    So next number will be +13
    => 33+13 = 46

  • 7. Which fraction will come next, \begin{aligned} \frac{1}{2}, \frac{3}{4}, \frac{5}{8}, \frac{7}{16}, ? \end{aligned}

    1. \begin{aligned} \frac{11}{32} \end{aligned}
    2. \begin{aligned} \frac{9}{28} \end{aligned}
    3. \begin{aligned} \frac{9}{30} \end{aligned}
    4. \begin{aligned} \frac{9}{32} \end{aligned}
    Answer And Explanation

    Answer: Option D

    Explanation:

    Numerators of the fractions in the given sequence are getting increased by 2, i.e. 1+2,3+2,5+2, so next will be 7+2 = 9

    Denominators of the fractions in the series is getting doubled, 2*2 = 4, 4*2 = 8, 8*2 = 16, no next will be 16*2 = 32

    So resulting fraction will be
    \begin{aligned}
    \frac{9}{32}
    \end{aligned}

Post a comment

  • zeeshan 1 year ago

    14,7.5,8.5,14.25,30.50,?

  • zeeshan 1 year ago

    Completion the series
    30,30,34,52,100,?

  • zeeshan 1 year ago

    Please complete the given series
    90,50,60,105,230,?

  • Pratheek 1 year ago

    Complete the series: 9,81,90,810,819,?

    pls let meknow the answer
    its very important

  • Sai 2 years ago

    9,11,17,37,79,189,?
    Complete the series
    Please comment with explanation

  • Raghav 2 years ago

    what will be the series

    253,136,352,460,324,631,244.?

    options are

    A.136 B.324

    C.352 D.631

    Yashvanth kumar 1 year ago replied

    9
    9*9= 81+9 = 90*9 = 810+9 = 819*9 =73 71

    Chan Doraemi 1 year ago replied

    7371 as 9*9=81
    81+9=90
    90*9=810
    810+9=819
    819*9=7371

    Chan Doraemi 1 year ago replied

    7371 as 9*9=81
    81+9=90
    90*9=810
    810+9=819
    819*9=7371

  • ALI 4 years ago

    PLZ COMPLETE THE SERIES
    5,12,?,54,110

    Shahid 3 years ago replied

    5*2+2=12
    12*2+2=26
    26*2+2=54

    Answer is 26

  • Ali Yaqoob 4 years ago

    what will come next in series M T W T F S?
    options: T S W F

  • Khushbu Mehta 4 years ago

    series comletion
    60,30,20,15, ? ?

    mastguru 4 years ago replied

    60,
    1/2(60) = 30,
    1/3(60) = 20,
    1/4(60) = 15,
    1/5(60) = 12,
    1/6(60) = 10..

    So it will be 60, 30, 20, 15, 12, 10.

  • Sourav 4 years ago

    series completion
    18,46,94,63,52,61,?
    What will replace the ?
    Please answer with logic

    Guest 4 years ago replied

    reverse all the number those are nothing but squares.
    18 is 81 which is 9^2, 46 is 64 that is 8^2 and so on.... so next number is 90 which 3^2 that is 09.

    varun 4 years ago replied

    And. 108 because add both digit sum is nine this no. Is repetitive after two no. So my answer is 108. 1+8=9;4+6=10 9+4=13;6+3=9;5+2=7;6+1=7;1+0+8=9.

  • Sourav 4 years ago

    Series completion
    18, 46, 94, 63, 52, 61,?
    What will be in place of ?
    Please tell me the answer with logic fast

  • deepak 5 years ago

    if 9=4
    21=9
    10=3
    and
    3=?
    please solve it
    give answer

    mastguru 5 years ago replied

    9 (nine) has four characters = 4
    21(twenty one) has nine characters = 9
    10(ten) has three characters = 3
    3(three) has five characters = 5

    So answer will be 5.

    abhiram 2 years ago replied

    10,because already in problem 10=3 then 3=10...

  • deepak 5 years ago

    if 9=4
    21=9
    10=3
    and
    3=?
    please solve it
    give answer

  • DEEPAK 5 years ago

    SERIES COMPLETION 3,5,12 ,?AND 3,5,21,? BUT L.C.M OF THESE NUMBERS ARE SAME
    PLEASE GIVE ME ANSWER

    mastguru 5 years ago replied

    Hello Deepak..
    LCM of 3,5,12 will be 60
    LCM of 3,5,21 will be 105

    So it will be different.
    Request you to please ask exact question. I afraid I didnt get your question..

    mastguru 5 years ago replied

    Hello Deepak,

    Please let me correct you..
    LCM of 3,5,12 is 60
    LCM of 3,5,21 is 105
    So it will not be same..
    Please ask your question again, as I afraid I am not getting exact question.