25 points for the one who does the 3rd question
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
amount=8800
principal=8000
time =1
rate of interest=r
interest=800
C.I=ptr/100
800=8000×1×r/100
800=80r
r=10%
(1)principal=8000
rate of interest=10
time=2
C.I=8000×10×2/100
C.I=1600
amount=interest+principal
1600+8000=9600
(2)A=p(1+tr/100)
8000(1+30/100)
8000×13/10
800×13=10400
given,
amount=8800
principal=8000
time =1
rate of interest=r
interest=800
C.I=ptr/100
800=8000×1×r/100
800=80r
r=10%
(1)principal=8000
rate of interest=10
time=2
C.I=8000×10×2/100
C.I=1600
amount=interest+principal
1600+8000=9600
(2)A=p(1+tr/100)
8000(1+30/100)
8000×13/10
800×13=10400