GRE General Test practice questions
213 free questions with answers and explanations.
- 201.A data scientist is analyzing a large dataset. The dataset contains 15,000 entries. If the processing software can analyze 250 entries per minute, how many hours will it take to process the entire dataset?Quantitative Reasoning
- 202.A data analyst is examining a dataset of monthly website visitors. The number of visitors increased by 20% in January, then decreased by 10% in February, and finally increased by 5% in March. If there were 10,000 visitors in December (before January's increase), how many visitors were there at the end of March?Quantitative Reasoning
- 203.A photography studio is resizing an image. The original image has dimensions of 1200 pixels by 800 pixels. If they want to resize it so that the longer side is 1500 pixels, what will be the length of the shorter side to maintain the aspect ratio?Quantitative Reasoning
- 204.A financial analyst is evaluating two investment options. Option A offers a 4% annual return compounded quarterly. Option B offers a 4.2% annual return compounded annually. If a principal of $10,000 is invested for 5 years, which option yields a higher return, and by approximately how much?Quantitative Reasoning
- 205.A photography studio is resizing an image. The original image has dimensions of 1200 pixels by 800 pixels. If they want to print it on a poster that is 30 inches wide, and maintain the aspect ratio, what will be the height of the poster in inches?Quantitative Reasoning
- 206.A technician is monitoring the temperature of an experimental substance. The temperature is currently 25°C and is decreasing at a constant rate of 3°C per hour. What will be the temperature of the substance after 4 hours?Quantitative Reasoning
- 207.A quality control engineer is inspecting a batch of 800 electronic components. He finds that 5% of the components are defective. How many components are NOT defective?Quantitative Reasoning
- 208.A scientist is observing the decay of a radioactive substance. The substance decays by half every 15 years. If she starts with 640 grams of the substance, how much will remain after 45 years?Quantitative Reasoning
- 209.A production line produces 2,400 items per day. Due to an efficiency improvement, the production increases by 10%. The following month, due to a new machine, production increases by an additional 5% of the new amount. What is the total daily production after both improvements?Quantitative Reasoning
- 210.A data analyst is examining a dataset of monthly website visitors. The number of visitors increased by 20% in January, then decreased by 10% in February, and finally increased by 5% in March. If there were 10,000 visitors at the end of December, how many visitors were there at the end of March?Quantitative Reasoning
- 211.A financial analyst is evaluating two investment options. Option A offers a 4% annual return compounded quarterly. Option B offers a 4.1% annual return compounded annually. If an initial investment of $10,000 is made for 5 years, which option yields a higher return and by approximately how much?Quantitative Reasoning
- 212.A quality control engineer is inspecting a batch of 800 electronic components. He finds that 3% of the components are defective. How many components are NOT defective?Quantitative Reasoning
- 213.A data analyst is examining the sales figures for a product over three months. The sales for January were $5,000, February were $7,500, and March were $6,000. What is the average monthly sales figure for this product?Quantitative Reasoning