Multiple Choice Questions on Height of a cylindrical jar is decreased by 36 By what percent must the radius be increased so that ........... for Mathematics - All Exams Preparation

Back to Main Page

Multiple Choice Questions

Height of a cylindrical jar is decreased by 36 By what percent must the radius be increased so that ...........

Quantitative Aptitude ( CCS) Mensuration 3D
    Download Solution PDF

    Height of a cylindrical jar is decreased by 36%. By what percent must the radius be increased, so that there is no change in its volume?

    25%

    Correct Answer

    35%

    Incorrect Answer

    45%

    Incorrect Answer

    50%

    Incorrect Answer
    छोटे Courses बड़े Results
    Master Mensuration 3D
    Prepare through Micro-courses
    Try Now
    Explanation:

    Answer & Explanation
    Answer – A. 25%
    Explanation :
    volume of cylindrical jar = Πr1²h
    volume of cylindrical jar = Πr2²(64/100)*h = (16/25)*Πr2²h
    r2²/r1² = 25/16
    r2 /r1 = 5/4
    (r2 – r1)/r1 = (5 – 4)/4 * 100 = 25%

    By: MIRZA SADDAM HUSSAIN
    ProfileResources

    Let's Discuss

    Master
    Mensuration 3D
    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