Multiple Choice Questions on The average of 9 numbers is 30 The average of first 5 numbers is 25 and that of the last 3 numbers i........... for Mathematics - All Exams Preparation

Back to Main Page

Multiple Choice Questions

The average of 9 numbers is 30 The average of first 5 numbers is 25 and that of the last 3 numbers i...........

Quantitative Aptitude ( CCS) Average
    Download Solution PDF

    The average of 9 numbers is 30. The average of first 5 numbers is 25 and that of the last 3 numbers is 35. What is the 6th number?

    20

    Incorrect Answer

    30

    Incorrect Answer

    40

    Correct Answer

    50

    Incorrect Answer
    छोटे Courses बड़े Results
    Master Average
    Prepare through Micro-courses
    Try Now
    Explanation:

    If average of 9 no.s is 30
    then their sum is 270
    Avrg. 5 no.s is 25
    their sum = 25×5 = 125
    Avrg. last 3 = 35
    their sum = 35×3 = 105
    the 6th no is
    270-125-105 = 40

    Hence, option 3 is the correct answer.

    By: Amit Kumar
    ProfileResources

    Let's Discuss

    Master
    Average
    With abhipedia
    Micro Courses
    Try Now
    What our students have to say
    Review on us
    Download Abhipedia Android App

    Access to prime resources

    Downlod from playstore
    download android app download android app for free