Question

rate of interest
23. A sum of money lent at simple interest amounts to 4745 in 3 years and to 5475 in
5
Find the sum and the rate per
cent per annum.
nent ner annum.​

Answer 1

Answer:

One day she saw a street trader from the balcony of her house who is an Afghan. She called her with the name of Kabuliwala when he passed her house slowly. This is what mini did in the balcony of her home

Answer 2

Answer:

Sum = Rs.3650/- and Rate = 10%

Step-by-step explanation:

SI = P * T *R/100

let x be the sum and r be the interest rate, then

1st Instance (3 Years)

SI + Sum = 3xr/100 + x = 4745

= 3xr + 100x = 474500   (1)

IInd Instance (5 Years)

SI + Sum = 5xr/100 + x = 5475

= 5xr + 100x = 547500   (2)

Subtracting equation (1) from (2) we get

2xr = 73000

xr = 36500

substituting this in 1st instance

3* (36500) +100x = 474500

109500 + 100x = 474500

100x = 474500 - 109500 = 365000

x = 365000/100  = 3650 = Sum

x * r = 36500

3650 * r = 36500

r = 36500/3650 = 10

Rate = 10%