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GED Language Arts Main Ideas and Details in Informational Texts Summary

Checked 10/25/26

Main Ideas and Details in Informational Texts: key points

  • The main idea is what the whole passage is mostly about, not one interesting detail.
  • An inference must be supported by the passage; do not add outside opinions.
Importance
★★★★★ (5 / 5)
Weight
About 13 of 38 Reading Comprehension questions (35%)

Finding stated details and main ideas, summarizing, making inferences, choosing the detail that supports a main idea, sequence, and cause and effect in science, social studies, and workplace texts (targets R.2 and R.3).

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Main Ideas and Details in Informational Texts: 10 sample questions

Practice questionReviewedReading Comprehension › Main Ideas and Details in Informational Texts★★★★★

Question 1. MEMO To: All Warehouse Staff From: Dana Ortiz, Operations Manager Re: New Forklift Check Procedure Starting Monday, March 3, every forklift must be inspected at the start of each shift, not once a week as before. Drivers will use the new checklist posted at the charging station. The checklist covers brakes, horn, lights, tires, and fluid levels. If any item fails, the driver must tag the forklift "Out of Service" and tell a supervisor before using another machine. Completed checklists go in the gray box by the time clock. We are making this change because two forklifts had brake problems last month that a daily check would have caught. Thank you for helping keep everyone safe. According to the memo, how often must each forklift now be inspected?

  1. ① Once a week
  2. ② At the start of every shift
  3. ③ Only when a supervisor asks
  4. ④ At the end of every month
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ② At the start of every shift

Key point: Stated details: find the exact line in the text

The memo says every forklift "must be inspected at the start of each shift, not once a week as before." This is a stated detail, so the answer comes straight from the text.

Wrong choices

  • "Once a week": "Once a week" was the old rule. The memo says this is being replaced.
  • "Only when a supervisor asks": The memo makes the check a regular duty for every shift, not something done only on request.
  • "At the end of every month": The memo never mentions a monthly inspection.
Practice questionReviewedReading Comprehension › Main Ideas and Details in Informational Texts★★★★★

Question 2. Most adults need seven or more hours of sleep each night, yet many get far less. Researchers have found that short sleep affects more than mood. During deep sleep, the body releases hormones that repair muscles and help control appetite. When sleep is cut short, levels of a hormone that signals hunger tend to rise, while a hormone that signals fullness tends to fall. This may explain why tired people often reach for snacks. Sleep also gives the brain time to sort and store new memories, so people who sleep poorly may have trouble learning new tasks. Simple habits can help: going to bed at the same time each night, keeping the bedroom dark and cool, and putting screens away an hour before bed. Which sentence best states the main idea of the passage?

  1. ① Most adults sleep more than seven hours a night.
  2. ② Getting enough sleep matters for the body and the brain in several ways.
  3. ③ Bedrooms should be kept dark and cool.
  4. ④ Tired people often reach for snacks.
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ② Getting enough sleep matters for the body and the brain in several ways.

Key point: Main idea: the point that covers the whole passage

The passage explains how sleep affects hormones, appetite, muscle repair, and memory, and then gives tips for better sleep. The only choice that covers all of this is that enough sleep matters for both body and brain.

Wrong choices

  • "Most adults sleep more than seven hours a night.": The passage says many adults get far less than seven hours, the opposite of this choice.
  • "Bedrooms should be kept dark and cool.": Keeping the bedroom dark and cool is one tip near the end; it is a detail.
  • "Tired people often reach for snacks.": Snacking is one example in the passage, not the main point.
Practice questionReviewedReading Comprehension › Main Ideas and Details in Informational Texts★★★★★

Question 3. Many homeowners ask whether rooftop solar panels make sense for them. The answer depends on three things. First, the roof must get strong sunlight for most of the day; a roof shaded by tall trees or buildings will produce much less power. Second, the roof should be in good shape. Panels usually last 25 years or more, so replacing an old roof first can avoid the cost of removing and reinstalling the panels later. Third, owners should look at local electricity prices and any state programs that lower the cost of installation. Where power is expensive and programs are generous, panels may pay for themselves sooner. Where power is cheap, it can take much longer to make back the money. What is the main purpose of the passage?

  1. ① To describe how solar panels turn sunlight into power
  2. ② To explain what to consider before getting rooftop solar panels
  3. ③ To argue that every home should have solar panels
  4. ④ To warn readers that solar panels damage roofs
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Answer: ② To explain what to consider before getting rooftop solar panels

Key point: Main idea of an informational text: what it mostly does

The passage opens with the question of whether solar panels make sense and then lists three things to consider: sunlight, roof condition, and local prices and programs. Its main purpose is to explain those factors.

Wrong choices

  • "To describe how solar panels turn sunlight into power": The passage never explains how panels make electricity.
  • "To argue that every home should have solar panels": The passage says "the answer depends," so it does not claim every home should have panels.
  • "To warn readers that solar panels damage roofs": The passage says to fix an old roof first to avoid moving panels later, not that panels damage roofs.
Practice questionReviewedReading Comprehension › Main Ideas and Details in Informational Texts★★★★★

Question 4. MEMO To: All Warehouse Staff From: Dana Ortiz, Operations Manager Re: New Forklift Check Procedure Starting Monday, March 3, every forklift must be inspected at the start of each shift, not once a week as before. Drivers will use the new checklist posted at the charging station. The checklist covers brakes, horn, lights, tires, and fluid levels. If any item fails, the driver must tag the forklift "Out of Service" and tell a supervisor before using another machine. Completed checklists go in the gray box by the time clock. We are making this change because two forklifts had brake problems last month that a daily check would have caught. Thank you for helping keep everyone safe. What must a driver do if an item on the checklist fails?

  1. ① Finish the shift and report the problem the next day
  2. ② Tag the forklift "Out of Service" and tell a supervisor
  3. ③ Fix the problem and then keep using the forklift
  4. ④ Put the checklist in the gray box and keep driving
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ② Tag the forklift "Out of Service" and tell a supervisor

Key point: Procedures: follow the steps exactly as written

The memo says that if any item fails, the driver must tag the forklift "Out of Service" and tell a supervisor before using another machine.

Wrong choices

  • "Finish the shift and report the problem the next day": The memo requires action right away, before using another machine, not the next day.
  • "Fix the problem and then keep using the forklift": The memo never tells drivers to repair the forklift themselves.
  • "Put the checklist in the gray box and keep driving": The gray box is only where completed checklists go. It does not replace tagging the forklift and telling a supervisor.
Practice questionReviewedReading Comprehension › Main Ideas and Details in Informational Texts★★★★★

Question 5. Riverside Public Library: Changes to Borrowing Rules Beginning June 1, the library will no longer charge late fees on books, movies, or music. Our staff found that fines kept many families, especially those with young children, from coming back after a single overdue book. Items that are more than 30 days overdue will still be marked as lost, and the borrower will be asked to return them or pay to replace them before checking out anything new. The borrowing limit will rise from 25 to 40 items per card. Laptops and Wi-Fi hotspots are not part of this change; they must still be returned within 7 days, and a $5 daily fee still applies. According to the notice, which items will still have a daily late fee?

  1. ① Laptops and Wi-Fi hotspots
  2. ② Books and magazines
  3. ③ Children's picture books
  4. ④ Movies and music
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Answer: ① Laptops and Wi-Fi hotspots

Key point: Exceptions: watch for 'not part of this change'

The notice ends with an exception: laptops and Wi-Fi hotspots "are not part of this change" and a $5 daily fee still applies to them.

Wrong choices

  • "Books and magazines": The notice says books will no longer have late fees.
  • "Children's picture books": Children's books are books, so they have no late fee under the new rule.
  • "Movies and music": Movies and music are named among the items with no more late fees.
Practice questionReviewedReading Comprehension › Main Ideas and Details in Informational Texts★★★★★

Question 6. In the early 1930s, a long drought struck the southern Great Plains. For years before, farmers had plowed up millions of acres of native grass to plant wheat. The deep roots of that grass had held the soil in place. When the rains stopped and the crops died, there was nothing to keep the dry topsoil from blowing away. Huge dust storms, some stretching hundreds of miles, rolled across Kansas, Oklahoma, and Texas. Families sealed their windows with wet sheets, yet dust still covered their tables. Many people lost their farms and moved west in search of work. In response, the federal government created programs that paid farmers to plant trees as windbreaks and to use methods that kept soil from washing or blowing away. According to the passage, what had held the soil in place before farmers plowed the land?

  1. ① Rows of trees planted as windbreaks
  2. ② The deep roots of native grass
  3. ③ Rows of wheat
  4. ④ Heavy rainfall every spring
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ② The deep roots of native grass

Key point: Stated detail: scan for the key words in the question

The passage says, "The deep roots of that grass had held the soil in place." "That grass" refers to the native grass farmers had plowed up.

Wrong choices

  • "Rows of trees planted as windbreaks": Tree windbreaks came later, as part of the government's response.
  • "Rows of wheat": Wheat replaced the grass; when the wheat died, nothing held the soil.
  • "Heavy rainfall every spring": The passage mentions a drought but never says spring rain held the soil.
Practice questionReviewedReading Comprehension › Main Ideas and Details in Informational Texts★★★★★

Question 7. Job Posting: Part-Time Maintenance Assistant, Greenway Apartments Hours: 20 hours per week, Tuesday through Friday mornings, with one Saturday a month. Pay: $19 per hour. Duties: Replace light bulbs and air filters, clean common areas, help with simple repairs such as fixing leaky faucets, and keep a log of completed work orders. Requirements: A valid driver's license and the ability to lift 50 pounds. Basic hand-tool skills are required; plumbing or electrical experience is helpful but not required. To apply: Email a short letter and a list of past jobs to the office manager by April 15. Applicants chosen for an interview will be called within one week after the deadline. Which of the following is a requirement for the job?

  1. ① The ability to lift 50 pounds
  2. ② Electrical experience
  3. ③ Weekend work every week
  4. ④ Plumbing experience
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Answer: ① The ability to lift 50 pounds

Key point: Required vs. helpful: read qualifiers carefully

Under "Requirements," the posting lists a valid driver's license, the ability to lift 50 pounds, and basic hand-tool skills.

Wrong choices

  • "Electrical experience": Electrical experience is also listed as helpful but not required.
  • "Weekend work every week": The job includes only one Saturday a month, not every weekend.
  • "Plumbing experience": The posting says plumbing experience is "helpful but not required."
Practice questionReviewedReading Comprehension › Main Ideas and Details in Informational Texts★★★★★

Question 8. When the United States was founded, most states allowed only white men who owned property to vote. Over the next two centuries, the right to vote grew through a series of changes to the Constitution. The Fifteenth Amendment, ratified in 1870, said a citizen's right to vote could not be denied because of race. In practice, however, many states used poll taxes and literacy tests to keep Black citizens from voting. The Nineteenth Amendment, ratified in 1920, barred denying the vote because of sex. The Twenty-fourth Amendment, ratified in 1964, banned poll taxes in federal elections, and the Voting Rights Act of 1965 outlawed literacy tests. In 1971, the Twenty-sixth Amendment lowered the voting age to 18. According to the passage, what did the Twenty-sixth Amendment do?

  1. ① It outlawed literacy tests.
  2. ② It banned poll taxes in federal elections.
  3. ③ It barred denying the vote because of sex.
  4. ④ It lowered the voting age to 18.
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Answer: ④ It lowered the voting age to 18.

Key point: Matching details: names and dates go together

The last sentence says that in 1971 the Twenty-sixth Amendment lowered the voting age to 18.

Wrong choices

  • "It outlawed literacy tests.": Literacy tests were outlawed by the Voting Rights Act of 1965, which was a law, not an amendment.
  • "It banned poll taxes in federal elections.": Banning poll taxes in federal elections was the Twenty-fourth Amendment.
  • "It barred denying the vote because of sex.": Barring denial because of sex was the Nineteenth Amendment.
Practice questionReviewedReading Comprehension › Main Ideas and Details in Informational Texts★★★★★

Question 9. Food Safety Tips for Home Cooks Bacteria grow fastest between 40°F and 140°F, a range often called the danger zone. To keep food safe, refrigerate leftovers within two hours of cooking, or within one hour if the room is hotter than 90°F. Thaw frozen meat in the refrigerator, in cold water that is changed every 30 minutes, or in the microwave, but never on the counter. Use a food thermometer instead of guessing: poultry is safe at 165°F, and ground beef at 160°F. Finally, keep raw meat away from ready-to-eat foods such as salad, and wash cutting boards with hot, soapy water after each use. According to the tips, which method of thawing meat should never be used?

  1. ① Leaving it on the counter
  2. ② Thawing it in the microwave
  3. ③ Thawing it in cold water changed every 30 minutes
  4. ④ Thawing it in the refrigerator
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ① Leaving it on the counter

Key point: Look for strong words like 'never' and 'always'

The passage lists three safe ways to thaw meat and then says, "but never on the counter."

Wrong choices

  • "Thawing it in the microwave": The microwave is one of the safe methods listed.
  • "Thawing it in cold water changed every 30 minutes": Cold water changed every 30 minutes is one of the safe methods listed.
  • "Thawing it in the refrigerator": The refrigerator is one of the safe methods listed.
Practice questionReviewedReading Comprehension › Main Ideas and Details in Informational Texts★★★★★

Question 10. Community Recycling Update Starting in September, the city will switch to single-stream recycling. Residents will no longer need to sort paper, plastic, and metal into separate bins; all clean recyclables can go into one blue cart. Glass, however, must still go to one of the four drop-off centers, because broken glass damages the sorting machines. Plastic bags should not go in the cart. They wrap around the machines' moving parts and force workers to stop the line to cut them free. Please return plastic bags to grocery stores that collect them. Food-covered items such as greasy pizza boxes belong in the trash, since food spoils the paper they are mixed with. Under the new system, where should residents put clean cans, paper, and plastic bottles?

  1. ① In the trash
  2. ② Together in one blue cart
  3. ③ In three separate bins
  4. ④ At a glass drop-off center
▼ Show answer and explanation▲ Hide answer and explanation

Answer: ② Together in one blue cart

Key point: Stated detail: the main change in a notice

The notice says residents "will no longer need to sort paper, plastic, and metal into separate bins; all clean recyclables can go into one blue cart."

Wrong choices

  • "In the trash": Clean recyclables go in the blue cart; only food-covered items go in the trash.
  • "In three separate bins": Separate bins were the old system that the city is replacing.
  • "At a glass drop-off center": Drop-off centers are only for glass.

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Written by AI · Not yet reviewed by staff