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Delhi Police Constable Exam Model Paper 3
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© examsnet.com
Question : 86
Total: 100
A person took a loan of amount Rs. 8000 from bank and bank offers 10% annual CI for first 2 years and r% annual CI for 3rdlast year. If person has to return Rs. 12100 to the bank, then find the value of ‘r’?
15%
35%
25%
20%
Validate
Solution:
GIVEN:
Loan amount = Rs.8000
FORMULA USED:
C
I
=
P
(
1
+
R
100
)
t
−
P
CALCULATION:
Principle = Rs. 8000
Now
,⇒
12100
=
8000
(
1
+
10
100
)
2
(
1
+
r
100
)
⇒
12100
=
9680
(
1
+
r
100
)
⇒
12100
9680
=
(
1
+
r
100
)
⇒
(
1
+
r
100
)
=
5
4
⇒
r
100
=
1
4
⇒
r
=
25
%
© examsnet.com
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