All questions
Question 1
To get a free city library card, show a photo ID. Also show a paper with your current address. If you do not have that paper, ask staff about another choice.
What is the passage mainly about?
- How library cards are sent by mail
- What to bring for a library card (correct answer)
- Why photo IDs show home addresses
- How to change an old library card
Explanation: When a question asks what a passage is "mainly about," you're being tested on finding the main idea — the one big topic the whole passage covers. Don't get distracted by small details; instead, ask yourself: "What is every sentence pointing toward?"
In this passage, every sentence is about getting a library card — specifically, what documents you need to bring. The first sentence mentions showing a photo ID. The second says to bring proof of your address. The third gives advice if you don't have that paper. All three sentences work together to answer one question: What should you bring to get a library card? That makes B the correct answer — it captures what the whole passage is about.
Answer A is wrong because the passage never mentions mailing library cards. That detail simply doesn't exist in the text. Answer C is wrong because the passage doesn't explain why photo IDs exist or whether they show addresses — it only tells you to bring one. This is a detail trap: don't assume information that isn't written. Answer D is wrong because the passage is about getting a new card, not changing an old one — again, a topic the passage never raises.
A helpful strategy: after reading a passage, cover it up and ask yourself, "If I had to explain this to a friend in one sentence, what would I say?" That one sentence is usually the main idea. If an answer choice introduces something the passage never mentions — like mail delivery or changing old cards — cross it off immediately.
Question 2
Keep this yogurt cold. After you open it, eat it within five days. The date on the cup is for yogurt that is still closed.
What is the main idea of the label?
- How to keep opened yogurt safe (correct answer)
- How to find the yogurt price
- Why closed yogurt lasts five days
- How long yogurt stays good if never opened
Explanation: When a question asks for the "main idea," you're looking for the biggest, most important point — the one idea that covers everything the passage is saying. Read the whole passage first, then ask yourself: "What is this mostly about?"
This label gives you three pieces of information: keep the yogurt cold, eat it within five days of opening, and the printed date only applies to unopened yogurt. Notice that two out of three sentences are specifically about what happens after you open the yogurt. The whole label is guiding you on how to handle opened yogurt safely — that makes A the correct answer.
Now let's look at why the other choices miss the mark. B mentions finding the yogurt price, but the passage never talks about price at all — this is a trap for students who confuse a food label with a price tag. C says the main idea is why closed yogurt lasts five days, but the passage never explains a reason — it only tells you that the five-day rule applies to opened yogurt, not closed. D is the trickiest distractor — it sounds close because the passage does mention closed yogurt. However, the passage says the cup's date is for closed yogurt, meaning it tells you that rule exists, not that the main idea is about unopened yogurt's shelf life. The focus stays on opened yogurt throughout.
A quick strategy: when a passage has three sentences, look at how many sentences support each answer choice. The answer with the most support is usually the main idea — not a detail buried in just one line.
Question 3
Clean the dryer filter after every load. A full filter makes clothes dry slowly. It can also raise the risk of a fire.
Which choice states the main idea?
- Dryers need a new filter after each load.
- Wet clothes cause most fires in homes.
- Cleaning the filter helps the dryer work safely. (correct answer)
- A full filter only slows very large loads.
Explanation: When a reading question asks for the "main idea," you're looking for the one statement that covers the whole passage — not just one detail from it. Ask yourself: what is the passage mostly about, and what is it trying to tell me?
This passage makes three connected points: clean the filter after every load, a dirty filter slows drying, and a dirty filter can cause a fire. Taken together, these points all support one central message — that keeping the filter clean matters for both performance and safety. Choice C, "Cleaning the filter helps the dryer work safely," captures that full picture. It reflects the overall purpose of the passage without leaving anything important out.
Choice A is tempting but contains a factual error — the passage says to clean the filter, not replace it with a new one. Watch for answer choices that swap one word and change the whole meaning. Choice B introduces the idea that wet clothes cause most home fires, but the passage never says this at all. When an answer brings in information from outside the passage, it is almost always wrong on a reading question. Choice D directly contradicts the passage, which says a full filter slows drying in general — not only for large loads. Choices that add limits or conditions the passage doesn't mention are usually traps.
A good study tip: when finding the main idea, eliminate answers that are too narrow (one small detail), too broad, factually wrong, or not supported by the text. The main idea should feel like a summary of the whole passage in one sentence.
Question 4
Route 8 will not stop at Pine Street from May 3 to May 7. Road work will close that stop. Riders can use the Oak Street stop. The Pine Street stop will open again on May 8.
Which sentence gives the main idea?
- Road work will end before May 3.
- Oak Street will close after May 8.
- Route 8 has a temporary stop change. (correct answer)
- Route 8 will stop running for five days.
Explanation: When a reading question asks for the "main idea," you're looking for the one sentence that covers what the whole passage is about — not just one detail from it. The main idea is the big picture.
This passage is about Route 8 skipping its Pine Street stop for a short period because of road work, then returning to normal. That's the full story in one phrase: a temporary stop change. Answer C — "Route 8 has a temporary stop change" — captures exactly that. It covers the who (Route 8), the what (a stop change), and hints at the why (it's temporary, meaning it won't last). It matches every sentence in the passage, which is a strong sign it's the main idea.
Now look at why the other choices miss the mark. Answer A says road work will end before May 3, but the passage says road work causes the closure starting May 3 — so this gets the timeline completely backwards and is simply false. Answer B claims Oak Street will close after May 8, which the passage never says at all — Oak Street is offered as an alternative stop, not a closing one, so B introduces made-up information. Answer D says Route 8 will stop running for five days, but that's too extreme — the route itself keeps running, only the Pine Street stop is affected. D confuses one stop closing with the whole bus line stopping.
A helpful tip: when hunting for the main idea, test each answer by asking, "Does this cover the whole passage, or just one piece of it?" The main idea fits everything; a detail only fits part.
Question 5
Two workers may ask to trade shifts. Both workers must sign the change form. A supervisor must approve it. Until then, each worker follows the old schedule.
Which choice gives the main idea?
- A shift trade is final only after approval. (correct answer)
- Two worker signatures make a trade final.
- The old schedule ends when workers ask.
- A supervisor signs the form before the workers do.
Explanation: When a reading question asks for the main idea, you're looking for the statement that captures what the whole passage is about — not just one detail from it.
This passage describes a multi-step process: workers sign a form, a supervisor approves it, and until approval happens, everyone follows the old schedule. The passage is building toward one central point — that a shift trade isn't complete until it's approved. That makes A the correct answer. It wraps up the entire process in one sentence: a trade is only final after approval. Every sentence in the passage supports this idea.
B focuses only on the workers' signatures, which is just one step in the process. The passage clearly shows that signatures alone aren't enough — supervisor approval is also required. Choosing B would mean ignoring the most important condition the passage describes.
C says the old schedule ends when workers ask to trade — but the passage says the opposite. Workers follow the old schedule until approval is given. This answer contradicts the passage directly, so you can rule it out quickly.
D says the supervisor signs before the workers do, but the passage never says that. It says workers sign first, then a supervisor must approve. This answer reverses the order and adds information that isn't there.
A useful strategy: when looking for the main idea, ask yourself, "What is this whole passage trying to tell me?" If an answer only covers one part of the passage, or contradicts it, it's a detail or a distractor — not the main idea.
Question 6
The clinic closes at 5 p.m. Calls after 5 p.m. are returned the next workday. For urgent help, call the nurse line. For an emergency, call 911.
What is this notice mainly about?
- When the clinic opens each workday
- How to get help after closing (correct answer)
- Why nurses return every clinic call
- How to make a morning appointment
Explanation: When a reading question asks what a passage is "mainly about," you're looking for the central idea — the one topic that covers most of what the passage says, not just one small detail.
Read the passage again: it tells you the clinic closes at 5 p.m., that calls after 5 p.m. are returned the next day, that you can call a nurse line for urgent needs, and that 911 is for emergencies. Notice that three of those four sentences deal with what to do after the clinic closes. That makes B — "How to get help after closing" — the best summary of the passage's main purpose.
Choice A is tempting because the passage does mention 5 p.m., but that's the closing time, not the opening time. The passage never tells you when the clinic opens, so A describes something the passage doesn't even cover. Choice C is a distortion — nurses are mentioned in connection with the nurse line, but the passage never says nurses return every clinic call or explains why they do anything. That idea simply isn't there. Choice D is completely outside the passage; there is no mention of morning appointments or how to schedule them at all.
A useful strategy: when you see "mainly about" questions, cross out answers that are either too narrow (just one detail), too broad, or bring in ideas from outside the passage. The correct answer will be the one that captures what most of the passage is doing — and here, most of the passage is guiding you toward help when the clinic is closed.
Question 7
Two bags of rice can have different sizes and prices. The shelf tag shows a unit price. This is the cost for the same amount of rice. A lower unit price may be the better buy.
Which title best fits the passage?
- Why large rice bags always cost less
- Why low package prices save the most
- How stores set the price of rice bags
- Using unit prices to compare rice bags (correct answer)
Explanation: When a question asks you to choose the best title for a passage, you're really being asked: What is this passage mostly about? A good title covers the main idea — not just one detail, and not something the passage never actually says.
This passage explains what a unit price is (the cost for the same amount of a product) and suggests that comparing unit prices helps you find the better buy. That main idea — using unit prices to compare — points directly to D as the best title. It accurately captures both the tool (unit prices) and the purpose (comparing rice bags).
Now look at why the other choices miss the mark. A says large bags always cost less — but the passage never makes that claim. In fact, it says bags "may" be a better buy, not that size guarantees a lower price. B focuses on low package prices, which is a different idea entirely. The passage is specifically about unit prices, not the sticker price on the bag — these are not the same thing. C says the passage is about how stores set prices, but the passage never discusses how stores decide on pricing. That topic simply isn't in the passage.
A helpful strategy: before looking at the answer choices, try to summarize the passage in one sentence yourself. Then find the title that matches your summary most closely. Watch out for titles that sound related but add something the passage never says — those are common traps. The best title sticks to what the passage actually teaches.
Question 8
Report a broken closet door on the building website. Report a small wall crack there too. For a water leak, call the office at once.
What is the main idea of this message?
- Repair problems are reported in different ways. (correct answer)
- Every repair problem must be reported online.
- Only water leaks will receive a repair.
- Small wall cracks need an immediate phone call.
Explanation: When a question asks for the main idea, you're looking for the one statement that covers the whole message — not just one part of it. Read the full passage and ask yourself: "What is this entire message really about?"
This passage gives three instructions: report a broken closet door online, report a small wall crack online, and call the office right away for a water leak. Notice that two problems use one method (the website) and one problem uses a different method (a phone call). The passage is really telling you that different problems are reported in different ways — which is exactly what choice A says. A captures the full picture of the message.
Choice B is a trap because it overgeneralizes. The passage does mention reporting online, but it also tells you to call for a water leak — so not every problem goes online. B contradicts part of the passage.
Choice C introduces an idea the passage never mentions. The message says nothing about which repairs will actually get fixed — it only tells you how to report them. This is a classic distractor that sounds reasonable but goes beyond what the text actually says.
Choice D gets the details backwards. The passage says a water leak needs an immediate phone call — not a small wall crack. Wall cracks are reported on the website. D swaps the instructions, so read carefully when answer choices mention specific details.
Study tip: On main idea questions, watch out for answers that are either too narrow (only cover one detail) or too broad/incorrect (add information the passage never gives). The correct answer will match the whole passage without going beyond it.
Question 9
The pharmacy may text when your refill is due. This first text is only a reminder. Wait for another text that says your medicine is ready before you go.
What is the main message?
- Every pharmacy text says medicine is ready.
- The first text asks you to visit.
- A refill reminder is not a ready notice. (correct answer)
- A refill is ready before its due date.
Explanation: When a passage gives you two similar things that are easy to mix up, the main message is usually about telling those two things apart. Here, the passage introduces two different texts from the pharmacy — a reminder text and a "ready" text — and warns you not to confuse them. That distinction is the heart of the message.
Choice C captures this perfectly: a refill reminder is not the same as a ready notice. The passage explicitly says the first text is "only a reminder" and tells you to wait for a second text before heading to the pharmacy. C restates that core warning in a clear, accurate way, making it the correct answer.
Choice A goes in the opposite direction of the passage's point. The passage actually teaches you that not every text means your medicine is ready — only the second one does. A contradicts the main message entirely. Choice B is also wrong because the passage says the opposite: the first text is just a reminder, and you should not visit yet. It's the second text that signals it's time to go. Choice D is a distortion that isn't supported by the passage at all — the passage says nothing about medicine being ready before its due date. This kind of answer introduces outside logic to trip you up.
A useful strategy: when a passage draws a contrast between two similar things, the main message is usually that contrast itself. Ask yourself, "What is the passage warning me not to mix up?" That question will often point you straight to the right answer.
Question 10
A pay stub shows gross pay and net pay. Gross pay is all the money earned before tax. Net pay is the money left after tax and other costs.
What does the passage mainly explain?
- Why workers pay the same tax
- When net pay enters a bank
- How workers can raise gross pay
- How gross pay and net pay differ (correct answer)
Explanation: When a reading question asks what a passage "mainly explains," you're being tested on your ability to find the central idea — the one big point the whole passage is built around. Ask yourself: "What is this passage mostly about, from beginning to end?"
This passage introduces two terms — gross pay and net pay — and explains what each one means. Gross pay is money earned before tax. Net pay is money remaining after tax and other costs. The whole passage is focused on defining and contrasting these two amounts, making D the correct answer. It accurately captures that the passage explains how gross pay and net pay differ from each other.
Choice A is wrong because the passage never says anything about workers paying the same tax — that idea is not mentioned anywhere in the passage. Choice B is wrong because the passage never discusses bank deposits or timing of payments — again, a topic that simply does not appear. Choice C is wrong because the passage does not give advice on how to earn more money or raise gross pay — it only defines what gross pay is.
A common trap on main idea questions is choosing an answer that sounds related to the topic but goes beyond or beside what the passage actually says. Choices A, B, and C all do exactly that — they bring in ideas the passage never covers.
Strategy tip: For "mainly explains" questions, find the idea that every sentence in the passage supports. If an answer choice introduces something the passage never mentions, eliminate it immediately.