After 2 years, Deion earned $270 in simple interest from a CD into which he initially deposited $6000. What was the annual interest rate of the CD? A. 6.5% B. 9.75% C. 2.25% D. 3.25%
I=prt
When I want to find the rate
r=I/pt so
R=(270/60002)100==2.25%
Answer:
C. 2.25%
Step-by-step explanation:
Given : Simple interest = $270
Principal = $6000
time = 2 years
To F ind : Annual interest rate (R)
Solution :
using simple interest formula i.e.
\(S.I. = P*R*T\)
where R is in decimals
⇒\(270 = 6000*R*2\)
⇒\(\frac{270}{6000*2} = R\)
⇒0.0225 = R(IN DECIMAL)
Multiply by 100 to convert it in percentage
⇒R = 2.25%
Thus the annual interest rate of the CD is 2.25%