at what intrest rate percent per annum if compounded annually,will rs 5000 amount to rs 6050 in 2 years.
Answers
Answered by
5
Answer: first emply the S.I formula and solve it the question is solved
Step-by-step explanation:
Answered by
15
Answer:
P=Rs. 5000,A=6050,n=2yrs,R=?
Use formula
A= P(1+R/100)^n
6050=5000(1+R/100)^2
6050/5000=(1+R/100)^2
605/500=1+R^2/10000+2R/100
605/500-1=R^2/10000+2R/100
105/500=R^2/10000+2R/100
21/100=R^2/10000+2R/100
R^2/10000+2R/100-21/100=0
R^2+200R-2100=0
R^2+210R-10R-2100=0
R(R+210)-10(R+210)=0
(R-10)(R+210)=0
so we get R=10%,because interest is not - ve
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