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Standard IX
Mathematics
Question
A capsule of medicine is in the shape of a sphere of diameter
3.5
m
m
. How much medicine (in
m
m
3
) is needed to fill this capsule?
22.458
m
m
3
32.346
m
m
3
23.346
m
m
3
12.346
m
m
3
A
22.458
m
m
3
B
23.346
m
m
3
C
32.346
m
m
3
D
12.346
m
m
3
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Solution
Verified by Toppr
The correct option is
A
22.458
m
m
3
r
=
3.5
2
m
m
Capacity of the capsule
=
4
3
π
r
3
=
4
3
×
22
7
×
3.5
2
×
3.5
2
×
3.5
2
m
m
3
=
4
3
×
22
7
×
7
4
×
7
4
×
7
4
m
m
3
=
11
24
×
49
m
m
3
=
539
24
m
m
3
=
22.346
m
m
3
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A capsule of medicine is in the shape of a sphere of diameter 3.5 mm. How much medicine (in mm
3
) is needed to fill this capsule?