Question

please give me answer​

Answer 1

Answer:

Step-by-step explanation:

Simple Interest

 

S.I=P*R*T

 

 

P=principal=sum

R=rate of interest= 7½ %=7.5 %=0.075

T=time in year=3yrs

 

S.I=P*R*T

 

S.I = P*0.075*3=0.225P

 

Amount is given 3920

 

Amount=Principle +simple interest

  3920=P+0.225P

  3920=P(1+0.225)

 3920=P(1.225)

 3920/1.225=P

 3200=P

 P=sum= $3200