Daily Practice Questions

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

📝 Questions

📊 SAT Math Hard
2. If p pounds and 10 ounces is equal to 90 ounces, what is the value of p ? (Note: 1 pound = 16 ounces.)
  1. A. 5 ✓
  2. B. 6
  3. C. 9
  4. D. 15
Explanation: Getting to the Answer: Since a pound is 16 ounces, 16 p + 10 = 90. So 16 p = 80, and p = 5. Choice (A) is correct.
📝 ACT Prep Medium
The taxi driver who finally picked up my boss and I wouldn't take credit cards.
  1. A. NO CHANGE
  2. B. whom finally picked up my boss and I
  3. C. who finally picked up my boss and me ✓
  4. D. which finally picked up my boss and myself
Explanation: The changes in the answers identify pronouns as the topic of the sentence. There are two pronouns in the underlined portion, so consider both and follow your two steps. Taxi driver is a person, and which is used only for things. Myself is correct only for emphasis (I myself don't know the answer) or when the subject and object are the same (I corrected myself). Cross off (D). Check the case for who and I, and don't worry—it's perfectly okay to check I first since everyone is scared of "who" versus "whom" (see "Who Versus Whom" below). For case, cross off everything except the pronoun and the verb. Picked up I is incorrect because I is a subject pronoun, so eliminate (A) and (B). The correct choice is (C), and you didn't even have to worry about "who" and "whom." Now go learn about them so you don't have to depend on luck the next time.
🧪 AP Chemistry Medium
A solution is prepared by dissolving solid ammonium nitrate, NH _{4} NO _{3} , in water. The initial temperature of the water was 25°C, but after the solid had dissolved, the temperature fell to 20°C. What conclusions may be made about Δ H and Δ S ?
  1. A. Δ H < 0 and Δ S > 0
  2. B. Δ H > 0 and Δ S > 0 ✓
  3. C. Δ H > 0 and Δ S < 0
  4. D. Δ H < 0 and Δ S < 0
Explanation: B —Dissolving almost always has Δ S > 0. A decrease in temperature means the process has Δ H > 0 (the system is absorbing energy from the surroundings). The thermometer measuring the temperature is part of the surroundings.
🧬 AP Biology Easy
The scientist has successfully created a plasmid that contains the DNA code for the human growth hormone gene. Which technique should the scientist use to insert the plasmid into a cell?
  1. A. bacterial transformation ✓
  2. B. CRISPR-Cas9
  3. C. gel electrophoresis
  4. D. polymerase chain reaction
Explanation: Bacterial transformation is the specific technique used to introduce foreign DNA, such as a plasmid containing the human growth hormone gene, into bacterial cells. This process allows bacteria to take up and express the new genetic material, which is essential for cloning genes or producing recombinant proteins like insulin or growth hormone. In contrast, CRISPR-Cas9 is used for precise genome editing rather than general plasmid insertion, gel electrophoresis separates DNA fragments by size, and PCR amplifies existing DNA sequences rather than inserting them into a cell.
✍️ AP English Language Hard
In sentence 22 (reproduced below) the writer wants to provide a convincing detail to illustrate Beethoven’s impetuosity.
  1. A. (as it is now)
  2. B. exploiting various sounds created by instruments that had been used since the Renaissance
  3. C. regularly employing traditional tempos and rhythms for both soloists and the string and brass sections of the orchestra
  4. D. and then suddenly turned on them and mocked them with derisive trumpet blasts for being such fools ✓
  5. E. often writing musical passages that have become instantaneously recognizable by classical music devotees
Explanation: describes a tactic that creates the impression of a brash, capricious musical style—although in reality every note had been carefully thought out.
🎯 GMAT Prep Easy
In a company memo, the head of the organization warned that employees should consider contributions to their 401ks or other similar retirement funds as not a luxury item, but as a necessary monthly payment similar to car or bill payments.
  1. A. as not a luxury item, but as
  2. B. as not a luxury item but
  3. C. not a luxury item, rather
  4. D. not as a luxury item, but as
  5. E. not a luxury item, but ✓
Explanation: The correct answer is E because it maintains parallel structure and proper grammar. The phrase 'as not a luxury item, but as' is awkward and redundant, while 'not a luxury item, but' correctly contrasts the two ideas. Option E provides the clearest and most grammatically sound comparison.

💡 Study Tips

🎯 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.

💚 Stay hydrated during study sessions

Even mild dehydration can reduce concentration and short-term memory. Keep a water bottle at your desk and take a sip during each break. Your brain is mostly water — it needs fuel to perform.

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