ixambee.com
New RBI Grade B 2025 Notification will come Soon! Enroll Here

    • My Home
      • Dashboard
      • My Account
      • My Courses
      • My Performance
      • Packages
      • Logout
    • youtube Free Videos
      Youtube VideosLive Classes RBI Grade BLive Classes SEBI Grade ALive Classes IBPS PO & RRB
    • Previous Year Paper
    • Exams
    • Online Course
    • Free Mock Test
    • General Awareness
    • Daily Practice
    • All Courses
    • Private Jobs New
    • Testimonials
    ixambee mentorbee
    1. Home
    2. Questions
    3. Quantitative Aptitude
    4. Algebra
    5. If 2a - 3b = 8 and ab = 7, then find the value of 2a + 3b.

    Question

    If 2a - 3b = 8 and ab = 7, then find the value of 2a +

    3b.
    A 2√58 Correct Answer Incorrect Answer
    B 3√58 Correct Answer Incorrect Answer
    C 5√58 Correct Answer Incorrect Answer
    D 2√66 Correct Answer Incorrect Answer

    Solution

    Squaring both the sides
    64 = 4a² + 9b² - 12(7)
    64 + 84 = 4a² + 9b²
    148 = 4a² + 9b²
    (2a + 3b)² = 148 + 84 = 232
    (2a + 3b) = 2√58

    Practice Next
      More Algebra Questions
    • A proclamation requiring person to appear must be published giving

    • Inflation is_______?

    • Who is responsible for determining the composition and appointment of the Board as per the  Digital Personal Data Protection Act?

    • Which of the following does NOT amount to an exclusion of Natural Justice principle?

    • An agreement enforceable by law is _________________

    • The Latin Maxim ubi jus ibi remedium means_______________

    • The Securities Appellate Tribunal shall consist of _______________ to exercise the powers and discharge the functions conferred

    • Under the Commercial Courts Act with respect to a territory over which the High Courts have ordinary original civil jurisdiction, what can the State Gov...

    • What is the composition of the Supreme Court Legal Services Committee as per the Legal Services Authority Act?

    • It shall be open to SEBI to inspect at all reasonable times books of accounts and other documents to be maintained by the Stock Exchanges for periods

    Relevant for Exams:

    • SSC CGL

    Please Register/Login to Download Question

    I Pledged to:

    Please Enter Details

    call-back
    Please enter Name We'll never share your email with anyone else.
    Please enter Correct Mobile Number We'll never share your email with anyone else.

    Thank You

    +91-9205524028 Available Mon-Sat (10 AM to 7 PM)

    [email protected]

    © ATOZLEARN EDUTECH PRIVATE LIMITED All rights reserved.

    Update Address

    Please enter complete address
    Please enter pincode
    Please enter State
    Please enter City

    Download the app

    ×
    QR Code
    Get Started with ixamBee

    Start learning 50% faster. Sign in now

    Please enter Mobile Number or Email Please enter valid Mobile Number or Email
    Please enter Mobile Number Please enter valid Mobile Number
    Email id already Exists Please Enter valid Email Address
    Please enter Mobile Number or Email Please enter valid Mobile Number or Email
    Mobile Number id already Exists Please Enter valid Mobile Number
    Please enter valid OTP Mail sent on your email