ixambee.com
New Enroll in RBI Grade B New Batch - Starts on May 21

    • 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 4x² + y² = 40 and x y = 6, then find the value of 2x + y?

    Question

    If 4x² + y² = 40 and x y = 6, then find the value

    of 2x + y?
    A 14 Correct Answer Incorrect Answer
    B 6 Correct Answer Incorrect Answer
    C 8 Correct Answer Incorrect Answer
    D 10 Correct Answer Incorrect Answer

    Solution

    given - 4x² + y² = 40 and x y = 6 so now  (2x+y) ² =4x² +y²+4xy = 40+4×6=64 (2x+y) =8

    Practice Next
      More Algebra Questions
    • Which of the following is a second-order condition of short-run equilibrium of firm under perfect competition?

    • The variance of first n natural numbers is -

    • For the given 6 values 15, 24, 18, 33, 42, 54, the three yearly moving averages are -

    • If Q₁, Q₂  and Q₃  are three quartiles of a frequency distribution, which of the following holds if the distribution is negatively skewed?

      ...
    • Supply Curve is a part of -

    • For discrete distribution, the co-efficient of kurtosis β₂ is -

    • Which of the following methods to measure seasonal variations comparatively utilizes the given data less?

    • Which of the following statement is not true?

    • Two random variables x and y have the following regression equations -

      3x + 2y – 26 = 0

      6x + y – 31 = 0

      then, the mean values o...

    • The main aim of agricultural census is -

    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