Question

Mahesh borrowed ₹ 3000 for 4 year and ₹ 8000 for 5/2 years from Maria at the same rate of interest the total interest earned by Maria is ₹ 2880.Find the rate of interest​

Answer 1

Answer:

the rate of interest is 9 %per annum

Answer 2

Answer is 9% per annum.....

5/2 years = 2.5 years

ATQ,

P = 3000

R = x

T = 4 years

Therefore,

S.I. = (P*T*R) ÷ 100

= (3000*x*4) ÷ 100

= 120x

ATQ,

P=8000

R=x

T= 2.5 years

S.I.=(P*T*R) ÷ 100

=(8000*x*2.5) ÷ 100

=200x

Given-

Total interest earned by Sonia= ₹2880

Therefore,

200x+120x=2880

320x=2880

X=16percent

Therefore,the rate of interest is 9 % per annum.

Hope it helps you dear.......xd