Question

the difference between simple interest on a certain sum of moneyfor 2 yrs and 3 yrs at 10 per annum is 500 . find the sum​

Answer 1

Answer:

Let the sum be Rs.100

Computation of compound interest:

Prinicpal

=

Rs.100

n=

2

R= 10%

Amount= Rs.

⎣

⎢

⎡ 100×

(1+

100

10

)

2

⎦

⎥

⎤

=

Rs.

⎣

⎢

⎡ 100×

(

2

11

)

2

⎦

⎥

⎤

=

Rs.121

Computation of simple interest:

Prinicpal

=

Rs.100

=

2

R= 10%

∴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. isRe.1

, Then Sum

=

Rs.100

If difference between C.I. and S.I. is Rs.500, Then Sum

=

Rs.(100×500)=

Rs.50000

Step-by-step explanation:

Hi..

Hope it helps you...