obtain present value of Rs. 25,000/- due to to years
hence on the basis of force of interest 15 % p.a.
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1
Answer:
P = Rs 42000 T=2 years
Let rate = r %
S.I=
100
PRT
=
100
42000×r×2
=840 Rs
For C.I
A=P(1+
100
r
)
n
=42000(1+
100
r
)
2
=42000(1+
10000
r
2
+
50
r
)
=42000+
10
42r
2
+840r
C.I = A - P
=42000+
10
42r
2
+840r−42000
=
10
42r
2
+840r
Given C.I−S.I=105
=
10
42r
2
+840r−840r=105
=
10
42r
2
=105
=42r
2
=1050
=r
2
=25
r=5%
C.I at 2nd year = 42000(1+
100
5
)
2
−42000
=42000(1.1025−1)=4305 Rstep-by-step explanation:
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