hamburger menu
All Coursesall course arrow
adda247
reward-icon
adda247
    arrow
    arrow
    arrow
    Select the number from among the given options that can replace the question mark (?) in the following series.105, 97, 89, 81, 73, ?
    Question

    Select the number from among the given options that can replace the question mark (?) in the following series.
    105, 97, 89, 81, 73, ?

    A.

    65

    B.

    58

    C.

    60

    D.

    70

    Correct option is A

    Given:
    Number series: 105, 97, 89, 81, 73, ?
    Logic: - the difference between consecutive terms is 8.
    1st number: 105
    2nd = 105 − 8 = 97
    3rd = 97 − 8 = 89
    4th = 89 − 8 = 81
    5th = 81 − 8 = 73
    6th = 73 − 8 = 65
    Final Answer:
    The missing number is 65
     Final Correct Option: (A) 65

    test-prime-package

    Access ‘RRB NTPC’ Mock Tests with

    • 60000+ Mocks and Previous Year Papers
    • Unlimited Re-Attempts
    • Personalised Report Card
    • 500% Refund on Final Selection
    • Largest Community
    students-icon
    167k+ students have already unlocked exclusive benefits with Test Prime!

    Free Tests

    Free
    Must Attempt

    DFCCIL MTS (Grade IV) PYP (Held on 10 Nov 2018 S1)

    languageIcon English
    • pdpQsnIcon120 Questions
    • pdpsheetsIcon120 Marks
    • timerIcon120 Mins
    languageIcon English
    Free
    Must Attempt

    DFCCIL MTS 2025 (Stage-1) Mock 1

    languageIcon English
    • pdpQsnIcon100 Questions
    • pdpsheetsIcon100 Marks
    • timerIcon90 Mins
    languageIcon English
    Free
    Must Attempt

    RRB JE Electrical Engineering 2024 CBT -2 : Mock Test – 01

    languageIcon English
    • pdpQsnIcon150 Questions
    • pdpsheetsIcon150 Marks
    • timerIcon120 Mins
    languageIcon English