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Standard IX
Mathematics
Question
The radius of two cylinders are in the ratio
2
:
3
and their heights are in the ratio
3
:
5
. Find the ratio of their volumes.
2
3
4
15
3
2
3
5
A
3
2
B
2
3
C
3
5
D
4
15
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Solution
Verified by Toppr
For Cylinder
1
:
r
1
=
2
x
h
1
=
3
y
For Cylinder
2
:
r
2
=
3
x
h
2
=
5
y
Ratio of the volumes
=
π
r
2
1
h
1
π
r
2
2
h
2
=
π
×
4
x
2
×
3
y
π
×
9
x
2
×
5
y
⇒
4
15
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