M4maths
Maths Puzzle
Category
For a sphere of radius 10 cm, the numerical value of the surface area in how many percent of the numerical value of its volume:
OPtion
1) 26.5 %
2) 25 %
3) 24 %
4) 27 %
5) 30 %
6) 34.5 %
7) 45 %
8) 46.5 %
9) 48 %
10)None of these
Read Solution (Total 2)
-
- Surface Area= 4*pi*r*r=400*pi
Volume= (4*pi*r*r*r)/3=4000*pi/3
Percentage= [(400*pi)/(4000*pi/3)]*100
= 30%
So option (5) - 10 years agoHelpfull: Yes(4) No(0)
- ans =30% option 5;
(4/3 pie r^3*x)/100=4 pie r^2;
x=30% - 10 years agoHelpfull: Yes(2) No(0)
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