Multiple Choice Questions on If the average of the first four of five numbers in decreasing order is 25 and the average of n........... for CAPF (AC) Exam Preparation

Back to Main Page

Multiple Choice Questions

If the average of the first four of five numbers in decreasing order is 25 and the average of n...........

Quantitative Aptitude( Paper-I ) Number System
    Download Solution PDF

    If the average of the first four of five numbers in decreasing order is 25 and the average  of  the last  four  numbers is 20, then what is the difference between the first and the last number?

    This questions was previously asked in
    CAPF 2022 Paper-1
    View All CAPF Previous Year Papers

    5

    Incorrect Answer

    10

    Incorrect Answer

    15

    Incorrect Answer

    20

    Correct Answer
    छोटे Courses बड़े Results
    Master Number System
    Prepare through Micro-courses
    Try Now
    Explanation:

    20.

    • No. be a, b, c, d, e (a>b>c>d >e)
    • 1st condition i.e. 25= (a+b+c+d)/4
    • a+b+c+d = 100........(1)
    • 2nd condition i.e. 20 = (e+d+c+b) /4
    • b+c+d+e = 80 ........2
    • Equation 1 - equation 2
    • a-e = 20.

    Let's Discuss

    Master
    Number System
    With abhipedia
    Micro Courses
    Try Now
    What our students have to say
    Download Abhipedia Android App

    Access to prime resources

    Downlod from playstore
    download android app download android app for free

    Search on abhipedia