1.

What is the difference between compound interests for 2 years and 3 years for Rs. 500 at 10% rate compounded annually?​

Answer»

ong>Step-by-step explanation:

LET the sum be Rs.100

Computation of compound INTEREST:

Prinicpal =Rs.100

R=10% PER annum and n=2 years.

Amount=Rs.

⎣

⎢

⎡

100×(1+

100

10

)

2

⎦

⎥

⎤

=Rs.

⎣

⎢

⎡

100×(

2

11

)

2

⎦

⎥

⎤

=Rs.121

Computation of SIMPLE interest:

Prinicpal =Rs.100

R=10% and Time =2 years.

∴S.I.=Rs.(

100

100×10×2

)=Rs.20

Thus, difference in C.I. and S.I.=Rs.(21−20)=Re.1

Now, if difference between C.I and S.I. is Re.1, Then Sum =Rs.100

If difference between C.I. and S.I. is Rs.500, Then Sum =Rs.(100×500)=Rs.50000

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