Ravi borrowed ₹8000 from his friend and after two years he returned

1.	Ravi borrowed ₹8000 from his friend and after two years he returned ₹10,000 to his friend. Find the simple interest and rate of interest.
Answer» <P>ANSWER: A= P[1+nr/100] 10000=8000[1+2r/100] 10000/8000= 1+0.02r 1.25-1= 0.02r 0.25/0.02=R 12.5%= rate of interest simpal interest is 1000-8000=2000 Step-by-step explanation: ANOTHER method is ... simple interest = 10000-8000=2000 simple interest=PTR/100 2000=8000×2×R/100 2000×100/8000×2=R 200000/16000=R 12.5%=R

Ravi borrowed ₹8000 from his friend and after two years he returned ₹10,000 to his friend. Find the simple interest and rate of interest.

Answer»

A= P[1+nr/100]

10000=8000[1+2r/100]

10000/8000= 1+0.02r

1.25-1= 0.02r

0.25/0.02=R

12.5%= rate of interest

simpal interest is

1000-8000=2000

Step-by-step explanation:

ANOTHER method is ...

simple interest =

10000-8000=2000

simple interest=PTR/100

2000=8000×2×R/100

2000×100/8000×2=R

200000/16000=R

12.5%=R