EQV-01-01

Reading Comprehension — Finding the Main Idea

In 30 seconds, lock down what any passage is really about. The single highest-leverage skill on GAT-E verbal.

~5 min read•Difficulty 2/5

The Question to Ask

After reading any passage, ask yourself one question:

"If I sent a one-line text message about this passage to a friend, what would I write?"

That sentence is the main idea.

Main Idea vs. Supporting Detail

	Main Idea ✅	Supporting Detail ❌
Asks	"What is this about?"	"What did the passage say about X?"
Scope	Broad and general	Narrow and specific
If removed	Passage collapses	Passage still makes sense
Usually contains	An abstract concept	Numbers, names, places

Quick example:

"Exercise improves both physical and mental health." $\to$ main idea ✅
"Doctors recommend 150 minutes of weekly exercise." $\to$ detail ❌

The Two-Step Test-Day Method

Step 1: Read the first and last sentences first

In 70% of GAT-E reading questions, the main idea sits in one of these.

Step 2: Eliminate trap answer choices

Cross out options that:

🗑️ Contain specific numbers or names (those are details)
🗑️ Talk about only one part of the passage (too narrow)
🗑️ Mention something the passage never discussed (too broad / off-topic)

What survives is your answer.

Question Phrasings to Recognize

Phrasing	What it means
"The main idea of the passage is..."	Direct
"The author's primary purpose is..."	Direct
"The passage is best summarized as..."	Direct
"This passage is mainly concerned with..."	Direct

Worked examples

Example 1 (difficulty 2/5)

Read this short passage: "Solar panels have become significantly cheaper over the past decade. As manufacturing has scaled and technology has improved, the cost per watt has dropped by over 80%. This has made solar energy economically competitive with fossil fuels in many regions, accelerating its adoption worldwide." The main idea of the passage is:

◎ Predict the answer first:

Tips

On GAT-E, the longest answer is rarely the main idea — depth is in details, not summaries.
If two answers are very similar, one usually has a small overstatement word ("always", "never", "all").
Read the question stem before the passage when time is tight.

Common mistakes

Picking the answer that just repeats the most memorable sentence

Why: A vivid detail is easy to recall, so the brain treats it as central.

Fix: Recall is not relevance. Re-check: does it cover the WHOLE passage?

Falling for "true but not the point" choices

Why: The choice may be factually accurate from the passage but only describes one part.

Fix: Test: would removing this idea collapse the passage, or only weaken one paragraph?

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