Question

At what rate of interest, Rs 84000 will yield Rs 20160 as interest in 3 years?

Answer 1

Answer:

SI =PRT/100

20160=84000×R×3/100

20160/840=R×3

24/3=R

8=R

rate of interest=8%per annum

Answer 2

SOLUTION

GIVEN

Rs 84000 yields Rs 20160 as interest in 3 years

TO DETERMINE

The rate of interest

EVALUATION

Here it is given that Rs 84000 yields Rs 20160 as interest in 3 years

Principal = P = Rs. 84000

Interest = I = Rs. 20160

Rate of interest = R%

Time = T years = 3 years

So by the given condition

$\displaystyle \sf{ I = \frac{PRT}{100} }$

$\displaystyle \sf{ \implies 20160 = \frac{84000 \times R \times 3}{100} }$

$\displaystyle \sf{ \implies 20160 = 840 \times R \times 3}$

$\displaystyle \sf{ \implies 2016 = 252 \times R }$

$\displaystyle \sf{ \implies 252 R = 2016 }$

$\displaystyle \sf{ \implies R = 8 }$

FINAL ANSWER

Hence the required rate of interest = 8%

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

$1.$ in how many years does a sum of rs.10000 yield the simple interest of rs.1600 at the rate of 8% per annum?

https://brainly.in/question/32010980

2. In what the time compound interest on Rs.10000 becomes Rs.10404 at 6% per annum, When the interest is compounded quarter...

https://brainly.in/question/16102009