hamburger menu
All Coursesall course arrow
adda247
reward-icon
adda247
    arrow
    arrow
    arrow
    Which of the following numbers will replace the question mark (?) in the given series? 12,17,32,57,92,? ​​
    Question

    Which of the following numbers will replace the question mark (?) in the given series?
    12,17,32,57,92,? ​​

    A.

    112

    B.

    122

    C.

    157

    D.

    137

    Correct option is D

    Given:
    12, 17, 32, 57, 92, ?
    Logic:
    Difference of two constitutive number is in incresing from 5, 15, 25, 35
    17−12=5
    32 − 17 = 15
    57 − 32 = 25
    92 − 57 = 35 
    The differences are increased by 10 of two constitutive number
    ​The next difference is 35 +10 = 45
    Add the next difference to the last term
    92+45= 137
    Thus, correct option is (d)
    ​​​

    Free Tests

    Free
    Must Attempt

    RRB NTPC CBT-2 (Graduate) Mock 1

    languageIcon English
    • pdpQsnIcon120 Questions
    • pdpsheetsIcon120 Marks
    • timerIcon90 Mins
    languageIcon English
    Free
    Must Attempt

    RRB NTPC CBT-2 (12th) Mock 1

    languageIcon English
    • pdpQsnIcon120 Questions
    • pdpsheetsIcon120 Marks
    • timerIcon90 Mins
    languageIcon English
    Free
    Must Attempt

    RRC Grp D General Science Section Test 1

    languageIcon English
    • pdpQsnIcon25 Questions
    • pdpsheetsIcon25 Marks
    • timerIcon15 Mins
    languageIcon English
    test-prime-package

    Access ‘RRB Group D’ Mock Tests with

    • 60000+ Mocks and Previous Year Papers
    • Unlimited Re-Attempts
    • Personalised Report Card
    • 500% Refund on Final Selection
    • Largest Community
    students-icon
    253k+ students have already unlocked exclusive benefits with Test Prime!
    Our Plans
    Monthsup-arrow