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Byju's Answer
Standard VII
Mathematics
Sphere
The ratio of ...
Question
The ratio of the volume and surface area of a sphere of unit radius without considering units is
A
4 : 3
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B
3 : 4
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C
1 : 3
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D
3 : 1
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Solution
The correct option is
C
1 : 3
r = 1 unit (given)
V
o
l
u
m
e
o
f
s
p
h
e
r
e
S
u
r
f
a
c
e
a
r
e
a
o
f
s
p
h
e
r
e
=
4
3
π
(
1
)
3
4
π
(
1
)
2
=
1
3
=
1
:
3
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