Question

1
A sum when reckoned at 7-% per annum amounts to 3920 in 3 years. Find the sum

2 A sum of money put at 11% per annum amounts to 4491 in 2 years 3 months. What will
amount to in 3 years at the same rate?​

Answer 1

Answer:

1. 3239.66₹

Step-by-step explanation:

The amount is given as ₹3920 at the rate of 7%p.a. in 3 years,

S. I. =3920-P...................... eq. 1

and

S. I. = P*R*T/100

S. I. = P*7*3/100..................eq.2

from above eqs :

3920-P=p*7*3/100

3920=21p/100 + P

3920=121p/100

P=3920*100/121

P = 3239.66₹