Identify Irrelevant information

Irrelevant information is a detail that does not connect to the exact thing the question is asking.
It might be perfectly true, but it points off to the side, away from the question.
Because it does not help answer the question, you can eliminate it.

Here is how to spot it.
First, notice exactly what the question is asking.
Then look at each choice and ask, "Does this actually talk about that?"
If a choice wanders off to something unrelated, it is irrelevant.

Passage: The old bridge was built more than a hundred years ago.
Farmers needed a fast way to carry their crops across the river.
With the bridge, trips that once took hours were done in minutes.
The bridge is painted a bright shade of green.
Question: Why was the bridge built?
Choice A: The bridge was built so farmers could carry crops across the river quickly.
Choice B: The bridge is painted a bright shade of green.
The color of the bridge has nothing to do with why it was built, so Choice B is irrelevant and Choice A is correct.

One thing to remember: irrelevant does not mean false.
An irrelevant choice can be completely true; it is wrong only because it does not answer the question.
So each time, gently ask yourself, "Does this choice really connect to what the question wants?"

Passage: The school started a garden club this spring.
Students wanted to learn how vegetables and flowers grow.
Each week they planted seeds and watched them sprout.
The garden is next to the school parking lot.
Question: Why did the school start the garden club?
Choice A: The school started the club so students could learn how plants grow.
Choice B: The garden is next to the school parking lot.
Where the garden sits does not explain why the club was started, so Choice B is irrelevant and Choice A is correct.

Passage: Priya won the school's big race this year.
For months, she trained hard every single morning.
Her steady practice made her faster than everyone else.
Priya's favorite color is purple.
Question: How did Priya win the race?
Choice A: Priya won because she trained hard every day.
Choice B: Priya's favorite color is purple.
Her favorite color has nothing to do with how she won, so Choice B is irrelevant and Choice A is correct.

Passage: The town library recently changed its hours.
Many people could not visit before it closed in the afternoon.
So the library began staying open later, into the evening.
Now more people can stop by after work.
The library also has a large collection of old maps.
Question: Why did the library start staying open later?
Choice A: The library stayed open later so people could visit after work.
Choice B: The library has a large collection of old maps.
Its collection of maps does not explain the new hours, so Choice B is irrelevant and Choice A is correct.