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SSC CHSL 19 Apr 2021 Shift 3 Solved Paper
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© examsnet.com
Question : 69
Total: 100
In how many years, the compound interest, if compounded annually on a sum of
₹
60000
at rate of
8
%
per annum is
₹
9984
?
3
1
4
2
Validate
Solution:
Let time for interest be
x
yr.
According to the question,
Compound interest
=
Principal
×
[
(
1
+
Rate
100
)
Time
−
1
]
&
9984
=
60000
×
[
(
1
+
8
100
)
x
−
1
]
⇒
9984
60000
+
1
=
(
1
+
8
100
)
x
⇒
(
108
100
)
x
=
69984
60000
=
11664
10000
=
(
108
100
)
2
∴
On comparison,
x
=
2
.
© examsnet.com
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