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SSC CGL Tier 2 Exam 12 Jan 2017 Paper 1
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© examsnet.com
Question : 47
Total: 100
The sum for 2 years gives a compound interest of Rs. 3225 at the rate of 15% per annum. The sum is
Rs. 10000
Rs. 20000
Rs. 15000
Rs. 32250
Validate
Solution:
(1) C.I.
=
P
[
(
1
+
R
100
)
T
−
1
]
⇒
3225
=
P
[
(
1
+
15
100
)
2
−
1
]
⇒
3225
=
P
[
(
1
+
3
20
)
2
−
1
]
⇒
3225
=
P
[
(
23
20
)
2
−
1
]
⇒
3225
=
P
(
529
400
−
1
)
⇒
3225
=
P
(
529
−
400
400
)
⇒
3225
=
P
×
129
400
⇒
P
=
3225
×
400
129
= Rs. 10000
© examsnet.com
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