According to the email, which fee does Mr. Alvarez qualify to have waived? The email never names a fee — it says only that members who joined before March receive a discount. To answer, you have to jump to the second document, a fee schedule, find the membership tier, and match the date. This is a cross-reference question, and it is the reason double passages are worth more attention than their word count suggests. The answer is not written in either text on its own; it exists only when you put the two documents side by side. This guide gives you the routine that turns that jump into a mechanical two-step instead of a hopeful reread.
What a cross-reference question actually asks
In a double-passage set of five questions, roughly two are answerable from a single document and two or three require combining information from both. The test does not label them, so your first job is recognizing which is which. A cross-reference question has a tell: it names a specific person, date, product, or amount and asks for a consequence that the first document only describes in general terms.
- Single-passage question:
What is the purpose of the email?— answer is inside the email. - Cross-reference question:
Which room has Ms. Tan been assigned?when the email says "the largest available room" and a separate floor plan lists room sizes — the answer requires both.
The pattern is: one document gives a rule or condition, the other gives the specific data you plug into it. The question asks for the result. If you try to answer from one text alone, you will either fail to find it or fall for a distractor that quotes that single text accurately but ignores the second. This is the same "the correct option is faithful to all the evidence, not just the sentence you landed on" discipline that governs inference and NOT-stated questions in single passages.
The document pairs that generate these questions
Cross-reference items are not random — they come from a small set of predictable document pairings, and knowing the pairing tells you where to look before you even read the question.
- Email + schedule/timetable: the email references a time or day ("the afternoon session"), the schedule gives the exact slot. Question asks when or which session.
- Invoice/order + policy/notice: the order lists items and amounts, the policy states thresholds ("free shipping over $50"). Question asks whether a charge applies.
- Announcement + form/registration: the notice states eligibility ("staff hired this year"), the form or roster gives a specific person's data. Question asks who qualifies.
- Letter + advertisement/price list: the letter expresses a preference or budget, the ad gives options and prices. Question asks which product fits.
When you see two documents, spend three seconds classifying the pair. The pairing predicts the crossing point — the fact in document A that must be matched against a value in document B.
The two-step matching routine
Once you have identified a cross-reference question, resist the urge to reread both documents in full. Run this instead.
Step 1 — anchor in the document that has the specific detail. The question usually names a concrete entity (a person, an order number, a date). Find that entity first, in whichever document lists it. That is your anchor. In the opening example, "Mr. Alvarez" and his join date are the anchor — locate them in the membership record.
Step 2 — carry the anchor to the rule. Take the specific fact you found and apply it to the condition stated in the other document. Alvarez joined in February; the email says pre-March members get the discount; the fee schedule shows which fee the discount applies to. The answer is the intersection of the three.
The routine is always specific fact → general rule → result. You are never reading for comprehension; you are transporting one value across the gap between the two texts. This targeted "find the anchor, then apply the condition" scanning is the same efficiency habit that keeps you from drowning in single-passage inference where the answer is stated indirectly.
The trap: the distractor that only reads one document
Every cross-reference question ships with a distractor engineered for the reader who stops at the first document. It states something the first text says accurately — but it is wrong because it ignores the constraint in the second.
Consider: an email says "we can offer the premium package if your budget allows," and a price list shows the premium package costs $900. A separate line in the letter said the client's ceiling is $700. The question Which package will the client most likely choose? offers "premium" as a distractor — perfectly consistent with the email's offer, but eliminated the moment you check the budget against the price. The learner who reads only the email picks premium; the learner who crosses to the price list picks the standard package. The distractor is true in one document and false across both. Whenever an option looks obviously supported by the text you just read, that is your cue to check the other document before committing.
How to sequence a double-passage set under time pressure
Order matters. Do the single-passage questions first — they are faster and they force you to read both documents once, which primes you for the crossings. Then take the cross-reference items with the anchor-and-carry routine. Never start with the hardest crossing cold.
- Read both documents once, lightly, noting what kind each is (email, schedule, invoice, policy).
- Answer the single-passage questions to build familiarity.
- For each remaining question, decide: is the answer in one text or the overlap? If overlap, run anchor → rule → result.
- Before locking any answer, ask: does an option here only hold if I ignore the second document? If so, it is the trap.
Cross-reference questions reward structure, not rereading. Classify the document pair, find the specific anchor, carry it to the rule, and refuse any option that survives only in a single text. That routine converts the part of double passages most learners fear into the most mechanical points on the section.