wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Diameter of a jar cylindrical in shape is increased by 25%. By what percent must the height be decreased so that there is no change in its volume?

A
10%
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
25%
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
36%
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
50%
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 36%
Let radius be 'r' and height of the jar be 'h' respectively.
Volume ==πr2h
Increased radius =1.25r
Decreased height H is given by πr2h=π(1.25r)2H
H=h1625
Percent decrease in height
=925×hh×100=36%

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Total Surface Area of a Cuboid
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon