Principal amount - 1000

Rate- 10%

Time- 9 yrs

SI= PxRxT/100

SI= 1000x10x9/100

SI=900

using the formula of simple interest

SI=P×R×T/100

Where:

• Principal = 1000

• Rate = 10

• Time= 9 yrs

SI=1000*10*9/100 = 900........... simple interest = 900

I hope u got the answer. by the given formula u can solve any questions based on simple interest.

let me know if u need more help. ...THANKUU!!!