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Interest (Simple) - Time from Interest, Principle, and Rate

Level 1

This math topic focuses on calculating the time required to earn a certain amount of simple interest, given the principal amount and the rate. The problems involve using the simple interest formula to determine the number of years needed based on different financial scenarios. Each question includes a specific principal value, interest amount, and interest rate, asking for the time duration in years. The skills practiced include applying the simple interest formula, understanding percentages, and performing basic algebraic manipulations.

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

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

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Math worksheet on 'Interest (Simple) - Time from Interest, Principle, and Rate (Level 1)'. 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 time in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$400\\ \text{Interest } &= \$200\\ \text{Rate } &= 10\%\\ \\ \text{Time } &= ?\text{yrs}\end{align*}
a
7
b
8
c
2
d
4
e
1
f
5
2
What is the time in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$600\\ \text{Interest } &= \$240\\ \text{Rate } &= 10\%\\ \\ \text{Time } &= ?\text{yrs}\end{align*}
a
13
b
11
c
10
d
7
e
4
f
8
3
What is the time in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$100\\ \text{Interest } &= \$20\\ \text{Rate } &= 10\%\\ \\ \text{Time } &= ?\text{yrs}\end{align*}
a
5
b
4
c
1
d
2
e
9
f
7
4
What is the time in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$900\\ \text{Interest } &= \$450\\ \text{Rate } &= 10\%\\ \\ \text{Time } &= ?\text{yrs}\end{align*}
a
3
b
4
c
2
d
13
e
11
f
5
5
What is the time in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$300\\ \text{Interest } &= \$180\\ \text{Rate } &= 10\%\\ \\ \text{Time } &= ?\text{yrs}\end{align*}
a
10
b
13
c
3
d
6
e
14
f
7
6
What is the time in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$300\\ \text{Interest } &= \$90\\ \text{Rate } &= 10\%\\ \\ \text{Time } &= ?\text{yrs}\end{align*}
a
7
b
2
c
4
d
3
e
5
f
1
7
What is the time in this simple interest situation?
A LaTex expression showing \begin{align*}\text{Principle } &= \$400\\ \text{Interest } &= \$240\\ \text{Rate } &= 10\%\\ \\ \text{Time } &= ?\text{yrs}\end{align*}
a
13
b
7
c
6
d
1
e
12
f
2
Interest (Simple) - Time from Interest, Principle, and Rate (Level 1) - Mobius Math