Grade 7 · Fractions & ratios

Simple interest practice

Simple interest is a grade 7 math skill aligned to Common Core standard 7.RP.A.3: use proportional relationships to solve multistep ratio and percent problems. Below are 8 practice questions with answers and step-by-step explanations, drawn from the 30 simple interest problems our math games drill.

CCSS 7.RP.A.330 questions in the bank
Sample questions

Try 8 for free

Question 1easy

Find the simple interest on $500\text{\char36}500 at 10%10\% per year for 11 year.

I = 500 \times 0.10 \times 1 = \50$.

Question 2easy

Find the simple interest on $400\text{\char36}400 at 25%25\% per year for 11 year.

I = 400 \times 0.25 \times 1 = \100$.

Question 3easy

Find the simple interest on $300\text{\char36}300 at 4%4\% per year for 11 year.

I = 300 \times 0.04 \times 1 = \12$.

Question 4easy

Find the simple interest on $200\text{\char36}200 at 10%10\% per year for 22 years.

I = 200 \times 0.10 \times 2 = \40$.

Question 5easy

Find the simple interest on $100\text{\char36}100 at 5%5\% per year for 11 year.

I = 100 \times 0.05 \times 1 = \5$.

Question 6easy

Find the simple interest on $100\text{\char36}100 at 10%10\% per year for 11 year.

I = 100 \times 0.1 \times 1 = \10$.

Question 7easy

Find the simple interest on $100\text{\char36}100 at 20%20\% per year for 11 year.

I = 100 \times 0.2 \times 1 = \20$.

Question 8easy

Find the simple interest on $200\text{\char36}200 at 5%5\% per year for 22 years.

I = 200 \times 0.05 \times 2 = \20$.

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Math games for Grade 7

Questions like these are served inside our head-to-head math games.

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Tests that cover simple interest:
ACTNAEPSBACMCAPSC READY
More Grade 7 skills:
Sampling and inferenceProbability of simple eventsRatios, rates, and proportionsTwo-event compound probability word problemsProbability basicsRatio, rate, and proportion word problemsTwo-event conditional probability word problemsVolume of prisms and cylindersAll Grade 7 practice →

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