The compound interest on Rs 20,480 at 6 % p.a for 2years 73 days which is to be calculated on
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Step-by-step explanation:
Principal=20480Rs.
Time =2 years 73 days=2
5
1
years
interest rate
4
25
%
Amounnt after 2 years 73 days=20480(1+
4×100
25
)
2
(1+
100
5
1
×
4
25
)
⇒20480(1+
4×100
25
)
2
(1+
4×100
5
)
⇒20480(1+
16
1
)
2
(1+
80
1
)
⇒20480(
16
17
)
2
80
81
⇒
16×16×80
20480×17×17×81
⇒
16×16
256×17×17×81
⇒17×17×81=23409Rs.
Then C.I.=23409−20480=2929Rs.
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