Exercise
Form 14: Simple Interest & Percent Error - Advanced Word Problems
Tackle challenging multi-step word problems involving simple interest and percent error. Apply mathematical reasoning to complex real-world situations.
Questions
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MultiChoice
Jack invested $500 at 5% simple interest per year. How much interest does he earn after 3 years?
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MultiChoice
A scientist predicted reaction time of 0.44 seconds, but actual time was 0.40 seconds. Calculate percent error.
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MultiChoice
Sophia deposits $800 into a savings account with 3% simple interest per year. What is total balance after 5 years?
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MultiChoice
An engineer estimated a beam length to be 10.5 meters. Actual length was 10.0 meters. Find percent error.
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MultiChoice
Liam paid $72 simple interest on a 3-year loan at an annual rate of 4%. How much principal did he borrow?
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MultiChoice
A store predicted selling 160 video games, but actually sold 140. What is percent error?
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MultiChoice
An account with $1,500 principal earned $180 simple interest over 3 years. What was annual interest rate?
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MultiChoice
A scale reads 408 grams for an object whose true mass is 400 grams. Find percent error.
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MultiChoice
How many years must $900 be invested at 5% simple interest per year to earn $180 in interest?
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MultiChoice
A student estimated her exam score would be 87, but actual score was 75. Calculate percent error.
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MultiChoice
Determine total amount owed on a $2,000 principal at 2% simple interest for 3 years.
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MultiChoice
A weather station estimated rainfall at 53 mm. Actual rainfall was 50 mm. Find percent error.