Coverage rule: Bluebook Practice Tests 1–10 are the comparison baseline; Test 11 is intentionally excluded. Do not use the explanations until you have submitted. For student-produced responses, enter an integer, decimal, or fraction as appropriate.

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Q	Domain	Your answer	Correct answer	Result	Time	Pace

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Question 1Algebra · Linear equations in one variable

ID ac472881

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Your answer

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Identity + rational coefficients + parameter

The student must clear fractions and enforce two independent identity conditions: the variable coefficients and the constants must both match. This is denser than the usual one-condition infinite-solutions setup.

Official Question Bank explanation

Correct answer: 403

Question 2Advanced Math · Nonlinear functions

ID 512bd5b4

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Your answer

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Exponential form → percent change over a non-unit interval

It tests whether the student can read a percent increase from exponential structure when the input changes by a specified interval, rather than simply substitute into a familiar growth formula.

Official Question Bank explanation

Correct answer: 44

Question 3Problem-Solving & Data Analysis · Margin of error

ID 85939da5

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ABCD

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Margin-of-error interpretation through cautious language

The key move is interpreting what a margin of error makes plausible or doubtful. It is a wording-and-inference problem, not a calculation problem.

Official Question Bank explanation

Correct answer: Choice D

Question 4Geometry & Trigonometry · Right triangles

ID 2c3aefc9

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Your answer

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Geometry constraint → quadratic

The Pythagorean theorem is only the first step: the side-difference condition creates a quadratic. This combines geometry and algebra rather than asking for a direct missing side.

Official Question Bank explanation

Correct answer: 38

Question 5Algebra · Linear equations in two variables

ID 3008cfc3

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Your answer

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Parametric coordinates + parametric intercept

The same parameter appears in point coordinates and in the intercept. The student has to notice that it cancels in the slope and then use the invariant slope again.

Official Question Bank explanation

Correct answer: 33

Question 6Advanced Math · Nonlinear functions

ID 128c75e2

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Your answer

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Absolute value + negative parameter sign control

The difficulty is conceptual sign analysis: because the parameter is negative, evaluating an absolute value changes the apparent sign of the parameterized expression.

Official Question Bank explanation

Correct answer: 609

Question 7Problem-Solving & Data Analysis · Conditional probability

ID 89ff6a0a

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Your answer

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Conditional probability with a complement restriction

The sample space must first be restricted to a 'not in group 2' condition. This is a strong test of denominator discipline rather than a routine probability fraction.

Official Question Bank explanation

Correct answer: .9538 / 0.9538 / 62/65

Question 8Geometry & Trigonometry · Circles

ID 35d37640

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ABCD

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Unit circle + coordinates + radians/coterminal angles

This combines coordinate constraints on a unit circle with positive radian measures and coterminal-angle reasoning, a noticeably different geometry/trigonometry framing.

Official Question Bank explanation

Correct answer: Choice D

Question 9Algebra · Linear equations in two variables

ID 9bbce683

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ABCD

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Table → equation → translation → intercept

The question forces a four-link chain: infer the original line from a table, translate it, form the new equation, and then find an intercept.

Official Question Bank explanation

Correct answer: Choice D

Question 10Advanced Math · Nonlinear functions

ID d139cf4b

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ABCD

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Function transformation/composition → extremum

The student must first build or interpret a transformed function and only then identify its maximum. The extremum is embedded inside a function-operation chain.

Official Question Bank explanation

Correct answer: Choice B

Question 11Problem-Solving & Data Analysis · One-variable data

ID 457d2f2c

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ABCD

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Data transformation invariants

Values are altered symmetrically around the median. The problem asks which statistic changes, forcing the student to reason about center versus spread rather than calculate every value.

Official Question Bank explanation

Correct answer: Choice D

Question 12Geometry & Trigonometry · Circles

ID c0b53183

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Your answer

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Tangents + radii + Pythagorean theorem + area

Several geometric facts must be linked: tangent-radius perpendicularity, equal tangent segments, a right triangle, and finally the area of a quadrilateral.

Official Question Bank explanation

Correct answer: 39312

Question 13Algebra · Linear functions

ID d4572f55

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ABCD

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Fully parametric table

A parameter is carried through every y-value. It cancels when finding slope but remains in the intercept, testing whether the student distinguishes what is invariant from what is not.

Official Question Bank explanation

Correct answer: Choice D

Question 14Advanced Math · Nonlinear functions

ID 1178f2df

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Your answer

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Quadratic table symmetry → reconstruct y-intercept

The student must detect the axis of symmetry from repeated output values in a table, reconstruct enough of the quadratic, and then evaluate the y-intercept.

Official Question Bank explanation

Correct answer: -2112

Question 15Problem-Solving & Data Analysis · One-variable data

ID cf2be18d

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ABCD

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Mean + median + range as simultaneous constraints

Three different summary-statistic conditions must be satisfied at once. This is a constraint-satisfaction problem rather than a single-statistic computation.

Official Question Bank explanation

Correct answer: Choice C

Question 16Geometry & Trigonometry · Area and volume

ID 73e1b793

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Your answer

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Similar solids: volume scale → linear scale

The student must reverse a volume ratio into a side-length ratio using a cube-root relationship, which is less routine than direct similar-figure proportions.

Official Question Bank explanation

Correct answer: 4

Question 17Algebra · Systems of two linear equations

ID ff501705

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Your answer

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Fractional system + no-solution parameter

The equations must first be cleared of fractions and standardized, and only then can the parallel-but-distinct condition be applied through proportional coefficients.

Official Question Bank explanation

Correct answer: 6

Question 18Problem-Solving & Data Analysis · Margin of error

ID 308084c5

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ABCD

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Margin of error → infer sample-size effect

Instead of interpreting an interval, this asks what causes a larger margin of error under comparable sampling conditions, testing statistical design reasoning.

Official Question Bank explanation

Correct answer: Choice D

Question 19Geometry & Trigonometry · Lines, angles, and triangles

ID 5b4757df

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Your answer

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Area → missing leg → similarity → composite length

The question chains area, a parallel-line similarity relationship, a proportion, and a final segment addition. No single formula finishes it.

Official Question Bank explanation

Correct answer: 14.66 / 14.67 / 44/3

Question 20Algebra · Linear equations in one variable

ID 55ea0659

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ABCD

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Discrete parameter + exactly-one solution + CANNOT

The parameter is constrained to positive integers and the answer condition is exclusionary. The student must characterize when uniqueness fails and then identify the impossible parameter.

Official Question Bank explanation

Correct answer: Choice D

Question 21Problem-Solving & Data Analysis · Inference from sample statistics

ID 7ce2830a

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ABCD

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Random sample → scope of generalization

The reasoning target is external validity: the student has to identify the largest population supported by the actual sampling frame, not simply choose the broadest population.

Official Question Bank explanation

Correct answer: Choice B

Question 22Geometry & Trigonometry · Lines, angles, and triangles

ID fecc446d

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ABCD

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Parallel lines + angle classes + sum + exclusion

The student must classify acute and obtuse angles created by a transversal, reason about sums of several angles, and then handle a 'could NOT' condition.

Official Question Bank explanation

Correct answer: Choice A

Question 23Algebra · Linear equations in one variable

ID 3f8a701b

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ABCD

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

No-solution equation + necessary-condition statements

Rather than solving for a single constant, the problem asks which of several statements must be true for no solution. It tests logical necessity and parameter relationships.

Official Question Bank explanation

Correct answer: Choice D

Question 24Geometry & Trigonometry · Circles

ID 44d67c6c

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Your answer

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Complete square → scaled circle → point substitution

The student must identify a circle's center and radius from a nonstandard equation, enlarge the circle, and then use a point on the new circle to recover a parameter.

Official Question Bank explanation

Correct answer: -2

Question 25Algebra · Systems of two linear equations

ID 9b7a1b67

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ABCD

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Graph + no-solution system + excluded parameter

This combines visual graph reading, parallel-line logic, and a 'NOT possible' parameter condition. It is a different reasoning path from solving an algebraic system directly.

Official Question Bank explanation

Correct answer: Choice A

Question 26Advanced Math · Nonlinear equations in one variable

ID 9a1f1941

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ABCD

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Absolute value equals a negative number → zero solutions by definition

This is a pure definition-and-domain trap. The student must recognize immediately that an absolute-value expression is nonnegative, so it cannot equal a negative number. The reasoning is structural rather than computational.

Official Question Bank explanation

Correct answer: Choice A

Question 27Advanced Math · Nonlinear functions

ID 18e35375

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ABCD

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Factored quadratic → find minimum using midpoint of roots

The quadratic is presented in a form that exposes its zeros rather than its vertex. The useful move is to recover the vertex x-coordinate as the midpoint of the two roots, so students practice moving between quadratic representations.

Official Question Bank explanation

Correct answer: Choice D

Question 28Advanced Math · Nonlinear functions

ID 6d9e01a2

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Your answer

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Standard-form quadratic → complete the square / vertex formula for x of minimum

This complements the factored-form item: here the minimum x-coordinate is not visible. Students must transform standard form or use the vertex relationship, reinforcing representation choice rather than rote substitution.

Official Question Bank explanation

Correct answer: 25/4 / 6.25

Question 29Advanced Math · Nonlinear functions

ID a7711fe8

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ABCD

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Direct reading of minimum value from vertex form

This is the third representation in the mini-ladder. The challenge is distinguishing the x-coordinate of the vertex from the minimum function value and reading the correct quantity directly from vertex form.

Official Question Bank explanation

Correct answer: Choice A

Question 30Algebra · Systems of two linear equations

ID 59813abf

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ABCD

WHY THIS QUESTION IS IN THE GAP-COVERAGE SET

Given one equation with positive parameter → choose second equation that produces no solution

The student must use proportional x- and y-coefficients together with a nonproportional constant to create parallel distinct lines. The positive-parameter condition matters when checking the constant ratio.

Official Question Bank explanation

Correct answer: Choice D

Digital SAT Math — Bluebook 1–10 Gap Coverage

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