This math topic focuses on calculating the simple interest rate given the principal, amount of interest, and time. These problems are part of a broader unit on percents and simple interest. Each question presents unique values for the principal, interest, and time, and requires finding the corresponding interest rate. Students are given multiple choices for each problem to select the correct rate. This practice aims to enhance students' understanding in dealing with monetary concepts and applying mathematical skills to real-world situations like finance and investments.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

more
View

Interest (Simple) - Rate From Interest, Principle, and Time Worksheet

Mobius Math Academy logo
Math worksheet on 'Interest (Simple) - Rate From Interest, Principle, and Time (Level 2)'. Part of a broader unit on 'Percents and Simple Interest - Intro' Learn online: app.mobius.academy/math/units/percents_and_simple_interest_intro/
1
What is the rate in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$500\\ \text{Interest } &= \$500\\ \text{Time } &= 5\text{yrs}\\ \\ \text{Rate } &= ?\%\end{align*}
a
24
b
8
c
30
d
36
e
20
f
6
2
What is the rate in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$400\\ \text{Interest } &= \$720\\ \text{Time } &= 6\text{yrs}\\ \\ \text{Rate } &= ?\%\end{align*}
a
54
b
57
c
6
d
30
e
18
f
42
3
What is the rate in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$100\\ \text{Interest } &= \$40\\ \text{Time } &= 2\text{yrs}\\ \\ \text{Rate } &= ?\%\end{align*}
a
20
b
26
c
38
d
18
e
2
f
4
4
What is the rate in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$300\\ \text{Interest } &= \$450\\ \text{Time } &= 5\text{yrs}\\ \\ \text{Rate } &= ?\%\end{align*}
a
30
b
24
c
6
d
9
e
51
f
21
5
What is the rate in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$400\\ \text{Interest } &= \$480\\ \text{Time } &= 4\text{yrs}\\ \\ \text{Rate } &= ?\%\end{align*}
a
48
b
18
c
33
d
54
e
30
f
36
6
What is the rate in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$300\\ \text{Interest } &= \$630\\ \text{Time } &= 7\text{yrs}\\ \\ \text{Rate } &= ?\%\end{align*}
a
27
b
15
c
48
d
30
e
21
f
6
7
What is the rate in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$600\\ \text{Interest } &= \$840\\ \text{Time } &= 7\text{yrs}\\ \\ \text{Rate } &= ?\%\end{align*}
a
34
b
38
c
16
d
8
e
14
f
20
Interest (Simple) - Rate From Interest, Principle, and Time (Level 2) - Mobius Math