Question

If Meena borrows Rs.7500 at the rate of interest 5% per annum for 3 yrs then the simple interest is ________ *

1 point

Rs.1125

Rs.1152

Rs.1521

Rs.1512​

Answer 1

Let the rate of interest =R%p.a.

In the first 3yrs,

principal =P=Rs7000, Time T=3yrs.

Then the interest =I

1

=

100

PRT

=

100

7000×R×3

=210R.

In the next (5-3)yrs=2yrs,

Pricipal =P=RS(7000−3000)=RS4000, Time =T=2yrs.

Then, the interest=I

2

=

100

PRT

=

100

4000×R×2

=80R.

∴ the total amount returned this time

=Rs(4000+I

1

+I

2

)=Rs5450

⟹4000+210R+80R=5450

⟹29R= 1521

So the rate of interest=1521% p.a.

hiii sanjay j.s

Answer 2

Answer:

si - PRT/100

7500×3×5/100=₹1125