Find the difference between Compound Interest calculated at 20% p.a. and Simple Interest calculated at 23% p.a. for the sum of Rs.20000 over a 2 year period.
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Answer:
Correct option is
B
Rs. 128
⇒ P=Rs.20,000,T=2years and R=8%.
⇒ S.I.=
100
P×R×T
⇒ S.I.=
100
20000×8×2
∴ S.I.=Rs.3200.
⇒ C.I.=P(1+
100
R
)
T
−P
⇒ C.I.=20,000×(1+
100
8
)
2
−20,000
⇒ C.I.=23,328−20,000
∴ C.I.=Rs.3328.
⇒ C.I.−S.I=Rs.3328−Rs.3200=Rs.128.
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