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SSC CGL Tier 2 Exam 21 Sep 2014 Paper
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© examsnet.com
Question : 1
Total: 100
PAPER-I : QUANTITATIVE ABILITIES
The compound interest on a certain sum of money for 2 years at 5% is ₹ 328, then the sum is
₹ 3000
₹ 3600
₹ 3200
₹ 3400
Validate
Solution:
(3) Let the principal be Rs. P
∴
C
.
I
.
=
P
[
(
1
+
R
100
)
2
−
1
]
⇒
328
=
P
[
(
1
+
5
100
)
2
−
1
]
⇒
328
=
P
[
(
21
20
)
2
−
1
]
⇒
328
=
P
(
441
400
−
1
)
⇒
328
=
P
(
441
−
400
400
)
⇒
328
=
41
P
400
⇒
P
=
328
×
400
41
=
R
s
.3200
© examsnet.com
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