Daily Practice Questions

6 questions across multiple subjects, with detailed explanations and study tips.

📝 Questions

🎯 GMAT Prep Easy
Boris has the same number of orange, purple, and green marbles that he wants to arrange in groups. He wants to arrange the orange marbles in groups of 15, the purple marbles in groups of 13, and the green marbles in groups of 14. What is the least number of marbles of each color Boris must have in order to make these groups and have no marbles leftover?
  1. A. 546
  2. B. 910
  3. C. 1,365
  4. D. 2,730 ✓
  5. E. 5,460
Explanation: To arrange the marbles in groups without leftovers, the number of marbles of each color must be divisible by 15, 13, and 14 respectively. The least such number is the LCM of 15, 13, and 14. LCM(15, 13, 14) = 2,730. Therefore, Boris must have at least 2,730 marbles of each color.
🎓 GRE Prep Hard
For the team with the median venue revenue in 2018, media revenue represented approximately what percent of that team’s total revenue?
  1. A. 25%
  2. B. 30% ✓
  3. C. 45%
  4. D. 70%
  5. E. 85%
Explanation: To find the correct answer, first identify the team with the median venue revenue in 2018 by ordering the teams from lowest to highest based on the provided chart data. Once that specific team is identified, calculate its total revenue by summing its media, merchandise, and other income sources for that year. Dividing the team's media revenue by this calculated total yields approximately 30%, making (B) the correct choice.
🧪 AP Chemistry Hard
Replacing a small fraction of silicon atoms with phosphorus atoms increases the conductive properties of silicon crystals. Which of the following statements correctly identifies the reason for this increase in conductivity?
  1. A. P atoms are smaller than Si atoms.
  2. B. P atoms have a greater nuclear charge than Si atoms.
  3. C. P atoms introduce additional mobile negative charges. ✓
  4. D. P atoms introduce additional mobile positive charges.
Explanation: Phosphorus has five valence electrons, whereas silicon has four; when phosphorus replaces silicon in the crystal lattice, the extra fifth electron is loosely bound and becomes a free-moving charge carrier, thereby increasing conductivity. This process creates an n-type semiconductor where the mobile charges are negatively charged electrons, distinguishing it from p-type doping which would introduce mobile positive holes.
📝 ACT Prep Medium
Passage III HUMANITIES: This passage is adapted from the article “The Sculpture Revolution” by Michael Michalski (©1998 Geer Publishing). The author expresses the idea that:
  1. A. art should never be studied in terms of movements.
  2. B. art can be labeled as modern when it introduces a style that is different from those found in works that came earlier. ✓
  3. C. lesser artists do not usually vary their styles.
  4. D. great artists are always nonconformists.
Explanation: The passage discusses how art is classified as modern when it introduces stylistic innovations that differ from previous works. This definition of modern art based on introducing new styles that depart from earlier traditions is exactly what option B describes. The other options make broader claims about art movements or artists that aren't supported by the specific focus of the passage.
📖 SAT Reading & Writing Medium
Which choice completes the text so that it conforms to the conventions of Standard English? When taking out a loan, the fine print is key. It is important to understand the differences between fixed _________ throughout the term of the loan, and adjustable interest rates, which can change over time.
  1. A. becoming
  2. B. becomed
  3. C. became ✓
  4. D. becomes
Explanation: “Became” is consistent with the past tense seen in surrounding verbs, like “wasn’t,” “used,” and “called.” The other options are not in the proper conjugation for past tense.
✍️ AP English Language Hard
To provide additional information, the writer may want to add the following sentence to the discussion in either the fifth or the sixth paragraph (lines 36–46).
  1. A. Before sentence 32
  2. B. After sentence 32, but not in the next paragraph
  3. C. In the new paragraph after sentence 32 ✓
  4. D. After sentence 33
  5. E. After sentence 34
Explanation: The sentence serves as a detail that follows the claim that new music was being heard “around the country.” The next paragraph also discusses music heard elsewhere, although its focus is on Chicago.

💡 Study Tips

📖 Take handwritten notes

Writing notes by hand (rather than typing) forces you to process and summarize information in your own words. This can help you build deeper conceptual understanding compared to passively copying text.

🎯 Time yourself on practice tests

Practicing under timed conditions builds your pacing instincts for test day. If you consistently run out of time on a section, adjust your strategy: spend less time on hard questions and secure the ones you know.

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