RD Sharma - Mathematics

Book: RD Sharma - Mathematics

Chapter: 21. Surface Area and Volume of a Sphere

Subject: Mathematics - Class 9th

Q. No. 9 of Exercise 21.2

Listen NCERT Audio Books to boost your productivity and retention power by 2X.

9

If the radius of a sphere is doubled, what is the ratio of the volume of the first sphere to that of the second sphere?

Volume of a sphere = (4/3)πr3


Let the radius of first sphere be’r’.


Radius of 2nd sphere = 2r


Ratio of the volume of the first sphere to that of the second sphere = 1 : 8


Chapter Exercises

More Exercise Questions