Question

(i) the interest on 6000 become 1200 at the rate of 5% per annum?
(ii) 8500 amount to 15 385 at the interest rate of 9% per annum?​

Answer 1

Step-by-step explanation:

1)p=6000

SI=1200

R=5%

N=?

SI=PNR/100

1200=6000×N×5/100

12=60×N/20

12×20/60=N

N=4

2)P=8500

A=15385

SI=15385-8500

SI=6885

R=9%

SI=PNR/100

6885=8500*N*9/100

6885=85*9N

1377=17*9N

81=9N

N=9