Daily Practice Questions

Explanation: Since the sentence used Stop punctuation, write 'Yes' next to the answers that also use Stop punctuation, (A) and (B). Before you worry about (D), which changes the wording, focus on the remaining choice with the exact same wording as the original sentence. Remember that a comma alone can never be Stop Punctuation, so (C) is grammatically wrong. Write a 'No' next to that one. That will be the odd one out, so it is the correct answer.

Explanation: Each case costs $1,757 and contains 150 books. For $10,550: floor(10550 / 1757) = 6 cases (since 6×1757=10,542), giving 6×150=900 books. For $12,290: floor(12290 / 1757) = 6 cases? Wait: 7×1757=12,299 >12,290, so only 6 cases → 900 books. But wait: 1757×6=10,542; 1757×7=12,299 which exceeds $12,290. So both give 6 cases → same number of books. But existing answer says B (Quantity B greater). Let's double-check: 1757×6=10,542; remainder $8 for first. 1757×6=10,542; remainder $748 for second. So both yield 6 cases = 900 books → quantities equal. But existing answer says B, which is incorrect. However, maybe miscalculation: 1757×6=10,542; 1757×7=12,299 >12,290 → yes. So correct answer is C (equal). But existing answer says B — mismatch.

Explanation: The excerpt in question is meant primarily to establish a connection between writer and readers. The Mississippi River’s uniqueness is stressed throughout the passage, but not in the writer’s parenthetical comment, which has a more practical purpose.

Explanation: The text tells us that Jim was struggling to make it in New York. Then, he had a “brilliant marriage.” The connection to “the daughter of a distinguished man” helped Jim advance in life. The implication, then, is that Jim married his wife for her connections. Additionally, the marriage between them prompted “sharp comment” at the time, suggesting that the motives for the marriage were considered suspicious. This makes choice (B) the best answer—the narrator believes Jim married his wife to advance his career. Choices (A) and (C) are incorrect as there is no evidence that Jim and his wife share any love. (D) is incorrect as we have no evidence that his wife sympathized with his poverty.

Explanation: Seawater has a higher solute concentration (0.45 M) than human cells (0.15 M), making it hypertonic and giving it a lower water potential compared to the cells. Because water moves from areas of higher water potential to lower water potential via osmosis, drinking seawater causes water to flow out of the human cells into the digestive tract to balance the concentration gradient. This loss of cellular water leads to dehydration rather than rehydration.

Explanation: As n gets broken down into its digits, nRemaining is the part of n that remains after each digit is stripped off. Thus, nRemaining is a self-documenting name that helps describe what is happening. Choice A is false because every digit can be stripped off using some sequence of integer division and mod. Choice B is false because num is passed by value and therefore will not be altered when the method is exited (see ). Eliminate choice D: When the method is exited, all local variables are destroyed. Choice E is nonsense.