Verified Answer :

penfila11Pen

I=PRT
P for Principle Amount
R for Rate
T for Time in years

255 = 2500 × r × 3
255 = 7500 × r
Divide by 7500 on both sides to isolate r
\(\frac{255}{7500}\) = \(\frac{7500 * r}{7500}\)
7500 and 7500 cancels out

0.034 = r
0.034 × 100 = 3.4%  (to convert it as a percentage)
Rate of Interest: 3.4%

Answer:

3.4%

Step-by-step explanation:

Here, Principal= $2500

Simple Interest= $255

Time= 3 years

we have to find the rate of interest

Rate of interest=\(\frac{simple interest. 100}{ p. t}\)

Rate=\(\frac{255}{2500}\)×\(\frac{100}{3}\)

Rate of interest= 34%

Hence, rate of interest is 3.4%

Hence, the correct answer is 3.4 %