Tüm alıştırma soruları

During a basketball season, a player scored the following number of points in their first five games: $18$, $9$, $24$, $14$, and $15$. What is the median number of points the player scored in these five games?

The passage below is from a historical report about the discovery of the Rosetta Stone.

In 1799, French soldiers rebuilding a fort in the port city of Rashid uncovered a slab of granite carved with three distinct scripts. Recognizing the potential significance of the stone, the soldiers quickly notified their commanders, who deliver the artifact to scholars in Alexandria. This crucial discovery eventually provided the key to deciphering ancient Egyptian hieroglyphs.

Which choice best maintains grammatical consistency in the passage?

The museum is a popular destination for tourists visiting the city. Although the galleries are normally quiet, a tour group of energetic children arrived at noon today. Their laughter and chatter echoed through the large marble halls.

Which choice is the best version of the underlined portion of the sentence?

A smart thermostat is programmed to reduce a home's heating energy usage. In January, the heating energy usage is reduced by $15\%$ compared to the baseline usage. In February, the usage is reduced by an additional $\frac{1}{8}$ of January's usage level. In March, the usage is reduced by $20\%$ of February's usage level. If the baseline heating energy usage was $400$ kilowatt-hours (kWh), what is the total reduction in energy usage from the baseline to the end of March, in kWh?

The following passage is adapted from a historical account of early scientific photography. Read the passage and determine which single, precise verb best completes the blank to maintain the academic and professional tone of the passage.

A store owner marks up the wholesale price of a jacket by $\$18$ to determine its retail price. If the retail price of the jacket is $\$75$, and $w$ represents the wholesale price in dollars, which of the following equations can be used to find $w$?

A store manager records the number of laptop computers sold each day during a 5-day work week. The daily sales, in chronological order from Monday to Friday, are 2, 10, 9, 4, and 5. What is the positive difference between the mean and the median of the number of laptops sold daily?

The following passage is from an essay about Indian architectural history.

In the early eighteenth century, Maharaja Sawai Jai Singh II constructed the Jantar Mantar, a collection of nineteen architectural astronomical instruments in Jaipur, India. Featuring the world's largest stone sundial, the Maharaja designed these structures to observe astronomical positions with the naked eye. Today, the site remains a testament to the scientific innovations of Mughal-era India.

Which of the following options represents the most grammatically correct revision of the underlined portion of the passage?

In 1938, museum curator Marjorie Courtenay-Latimer was examining the catch of a local fisherman in South Africa when a brilliant blue fish caught her eye. This creature was later identified as a coelacanth, a prehistoric fish thought to have gone extinct over 66 million years ago. Scientists were absolutely blown away by the discovery, which fundamentally challenged their understanding of vertebrate evolution. The coelacanth, often referred to as a 'living fossil,' possesses lobed fins that resemble the limbs of land-dwelling vertebrates, providing a crucial link in the evolutionary transition from water to land.

Which of the following choices best maintains the established tone and style of the passage?

A supercomputer can perform $4.5 \times 10^{15}$ calculations per second. If a complex simulation requires a total of $1.8 \times 10^{19}$ calculations, which of the following is the number of seconds it will take the supercomputer to complete this simulation?

The following paragraph describes Alexander Fleming's discovery of penicillin. Fill in the blank with the correct form of the verb 'realize' to ensure proper verb tense consistency within the passage.

On a vertical number line representing elevation in meters, a research drone is at coordinate $d$ and a submarine is at coordinate $s$. The coordinate of the drone is a positive integer, and the coordinate of the submarine is a negative integer. The distance between the drone and the submarine is $150$ meters. If the absolute value of the submarine's coordinate is $4$ times the coordinate of the drone, what is the coordinate of the drone?

A researcher is cataloging a collection of $T$ historic documents. She catalogs the documents at a constant rate of $r$ documents per day. After $d$ days of cataloging, the remaining documents represent a fraction, $f$, of the entire collection. Which of the following equations correctly expresses the total number of documents in the collection, $T$, in terms of $r$, $d$, and $f$?

In a school's robotics club, the ratio of experienced members to novice members was $3:5$. After $4$ experienced members graduated and $12$ new novice members joined the club, the ratio of experienced members to novice members became $1:3$. What was the total number of members in the robotics club before the graduations and new members joined?

A jeweler creates a custom alloy by melting gold, silver, and copper in a ratio of $9:4:2$ by weight, respectively. If the jeweler uses $12$ ounces of silver to make the alloy, what is the total weight, in ounces, of the alloy produced?

The following passage contains an underlined portion.

Deep-sea hydrothermal vents, which form along mid-ocean ridges, support unique ecosystems that thrive in complete darkness. Organisms in these environments rely on chemosynthetic bacteria, these microorganisms convert toxic chemicals into organic matter, therefore, they serve as the primary producers of the food web. Scientists continue to study these systems to understand the limits of life on Earth and potentially other planets.

Which of the following choices best replaces the underlined portion of the passage?

Although the research team designed a sophisticated, heavily armored submersible, they spent several weeks resolving unexpected electrical issues before the first dive.

Which choice represents the correct punctuation for the underlined portion of the sentence?

Before the concert began, the classical guitarist polished the antique, wooden instrument, tightened the tuning pegs and adjusted the music stand.

Which choice is the best version of the underlined portion?

Choose the option that best fits the underlined portion of the passage.

When restoring historical oil paintings, conservators must work with extreme caution to avoid damaging the original pigment. Over time, layers of varnish can discolor, obscuring the artist's original color palette. To address this, conservators apply chemical solvents that eat the yellowed varnish without affecting the underlying paint layers. This delicate process requires a deep understanding of chemistry to ensure the artwork is preserved for future generations.

Which of the following options most precisely and clearly replaces the underlined word in the passage?

If $x = \frac{\sqrt{8^{12} \times 4^6}}{\sqrt[3]{16^9}}$, what is the value of $\sqrt{x}$?