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. Find the value x2 + y2, if xy = 13 and x + y = 7.

    Question

    Find the value x2 + y2, if xy = 13

    and x + y = 7.
    A 20 Correct Answer Incorrect Answer
    B 26 Correct Answer Incorrect Answer
    C 23 Correct Answer Incorrect Answer
    D 30 Correct Answer Incorrect Answer

    Solution

    We know that (x + y)2 = x2 + 2xy + y2 = x2 + y2 = (x + y)2 – 2xy = 72 – 2(13) = 49 – 26 = 23

    Practice Next
      More Algebra Questions
    • Reducing sugars help in the food industry in the following way. Which of the following given sentences is untrue?

    • Which of the following are physical contaminants causing damage to the quality of product?

    • The protein allowance for pregnant women is:

    • The technique first described to determine the incipient spoilage in meat was:

    • Pili are tubular shafts in________ bacteria that serve as a means of_______

    • Moisture content in intermediate moisture food (IMF) is:

    • Which method used to preserves food by slowing down the growth and reproduction of microorganisms.

    • In cryogenic freezing the liquid nitrogen temperature is:

    • Following statement/statements mention the superiority of agar w.r.t. gelatin as a solidifying agent

      a. Agar  d oes not melt at room temperature...

    • Which sentences are true?

      1. Sucrose is a reducing sugar.

      2. Iron acts as pro-oxidant in vegetable oil.

      3. Beta carotene is a precu...

    Relevant for Exams:

    • Coal India Management Trainee
    • Coal India MT Legal

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