hamburger menu
All Coursesall course arrow
adda247
reward-icon
adda247
    arrow
    arrow
    arrow
    Find the value of N in the following equation 1/3+2/9=(N+1)/(N+5).
    Question

    Find the value of N in the following equation 1/3+2/9=(N+1)/(N+5).

    A.

    1

    B.

    3

    C.

    4

    D.

    0

    Correct option is C

    Solution:

    13+29=N+1N+539+29=5959=N+1N+55(N+5)=9(N+1)5N+25=9N+95N9N=9254N=16N=164=4\frac{1}{3} + \frac{2}{9} = \frac{N+1}{N+5} \\\frac{3}{9} + \frac{2}{9} = \frac{5}{9} \\\frac{5}{9} = \frac{N+1}{N+5} \\5(N + 5) = 9(N + 1) \\5N + 25 = 9N + 9 \\5N - 9N = 9 - 25 \\-4N = -16 \\N = \frac{-16}{-4} = 4​​

    Free Tests

    Free
    Must Attempt

    CBT-1 Full Mock Test 1

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

    RRB NTPC UG Level PYP (Held on 7 Aug 2025 S1)

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

    CBT-1 General Awareness Section Test 1

    languageIcon English
    • pdpQsnIcon40 Questions
    • pdpsheetsIcon30 Marks
    • timerIcon25 Mins
    languageIcon English
    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
    383k+ students have already unlocked exclusive benefits with Test Prime!
    Our Plans
    Monthsup-arrow