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IBPS Clerk Mains 2017 Paper
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© examsnet.com
Question : 95
Total: 178
If the volume and curved surface area of a cylinder
816
m
3
and
452
m
2
respectively, what is the total surface area of the cylinder (in
m
2
)?
535.7
543.4
513.8
507.6
505
Validate
Solution:
(a)
π
r
2
h
2
π
r
h
=
816
452
r = 3.61
π
r
2
h
=
816
h = 2
h
=
816
3.14
×
(
3.61
)
2
=
19.94
m
≈
20
m
Total S. A.
=
2
π
r
h
+
2
π
r
2
= 2πr (h + r)
=
2
×
22
7
×
3.61
(
3.61
+
20
)
=
535.7
m
2
© examsnet.com
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