Question

sir Ji please question no. 18 solve kar dijiye

Answer 1

hey.
interest = amount-principal.
". = 9824.05-8000.
"= 1824.5.
also we have .
I= {(pnr)/100}
1824.5=8000*1*r/100.
solving we get ,
r= 22.8%p.a.

Answer 2

SOLUTION 1 : Assuming Simple Interest Rate

Principal = Rs 8000

Amount with interest = Rs 9724.05

Find interest:

Interest = 9724.05 - 8000 = Rs 1724.50

Find interest rate:

Interest rate = 1724.50/8000 x 100 = 21.56%

Answer: The simple interest rate will be 21.56% per annum

------------------------------------------------------------------------------------------

SOLUTION 2 : Assuming compound Interest Rate

Principal = Rs 8000

Amount with interest = Rs 9724.05

Period = Quarterly ( 4 times a year)

Find interest rate:

9724.05 = 8000 (1 + r/4)⁴

(1 + r/4)⁴ = 9724.05 ÷ 8000

1 + r/4 = ⁴√(9724.05 ÷ 8000)

1 + r/4 = 1.05

r/4 = 0.05

r = 20%

Answer: The compound interest rate is 20% per annum