24-Hour GMAT Crash Course

Hour 24 of 24 — Final Review & Exam Day Strategy

You made it. This final hour consolidates everything you have learned and arms you with the exam-day mindset to convert knowledge into your best possible score.

Progress 24 / 24 Hours Complete

✓ Crash Course Complete

24-Hour Crash Course / DI Section / Hour 24: Final Review

What You Will Learn This Hour

Core Concepts: Complete 24-Hour Recap

1 GMAT Focus Edition Structure

Quantitative Reasoning
21 questions • 45 minutes • Problem Solving only • No Data Sufficiency
Verbal Reasoning
23 questions • 45 minutes • Critical Reasoning + Reading Comprehension • No Sentence Correction
Data Insights
20 questions • 45 minutes • DS, MSR, TPA, GSI, Table Analysis
Total: 64 questions over 135 minutes (plus breaks). Scored 205–805 in 10-point increments.

2 Section Order Choice

On GMAT Focus you choose the order of the three sections at the start of the test. The right order depends on your strengths.

Strategy A: Start with your strongest section to build confidence and momentum.
Strategy B: Start with your weakest section while your mind is freshest — fatigue is your enemy on hard questions.
Recommendation: Most test-takers perform best: DI → Quant → Verbal, or Verbal → Quant → DI. Try both orders on mock tests first.

3 Pacing Strategy

Quant
~2:08
min per question
Verbal
~1:57
min per question
Data Insights
~2:15
min per question

Check the on-screen timer after every 5 questions. If you are behind pace, speed up on easier questions, not harder ones. Never spend more than 3 minutes on any single question.

4 When to Guess

  • You have spent 2+ minutes and have no clear path forward — guess and move on.
  • You can eliminate 2–3 choices, making a 50/50 or 33% guess — worth taking.
  • There is no penalty for wrong answers on GMAT Focus. Never leave a question blank.
  • In the last 2 minutes, answer all remaining questions quickly — omitting is worse than guessing.

5 Mental Stamina Tips

Take the optional 10-minute break between sections. Stand up, stretch, walk, splash cold water on your face.
Breathe deeply before reading each question. Rushing causes careless errors — one breath costs 3 seconds and saves minutes.
Reset after a hard question. Whatever happened on Q12 is done. Q13 is a fresh start — treat it that way.
Use your scratch pad actively. Writing down key information slows your mind enough to process it accurately.

Test Day Checklist

NIGHT BEFORE Sleep 8 hours minimum Review your formula sheet No new material tonight Confirm test center location Pack ID and confirmation Lay out clothes and snacks MORNING OF Eat a real breakfast Arrive 30 min early Bring valid government ID Light stretching / walk Review section order choice Leave phone in locker DURING EXAM Pace: check timer Q5 Flag and move on Trust your preparation Use the scratch pad Take the optional break Answer every question

Worked Examples

Example 1 — Quantitative Reasoning

A store sells two items. Item A costs $48 and Item B costs $36. If a customer buys both items and receives a 15% discount on the total, how much does the customer pay?

Step-by-step solution:

Step 1: Find the total before discount: $48 + $36 = $84

Step 2: Calculate the discount amount: 15% × $84 = 0.15 × 84 = $12.60

Step 3: Subtract the discount: $84 − $12.60 = $71.40

Answer: $71.40

Key insight: Always compute the full total first, then apply the percentage. Never apply the percentage to individual items when the discount is on the combined total.

Example 2 — Verbal Reasoning (Critical Reasoning)

"A city implemented a new bike-lane program last year. Since then, cycling injuries have increased by 20%. Therefore, the bike-lane program has made the city less safe for cyclists."

Which of the following, if true, most weakens the argument above?

Step-by-step solution:

Identify the conclusion: The bike-lane program made the city less safe for cyclists.

Identify the premise: Cycling injuries increased 20% after the program.

Find the gap: More injuries could also result from more cyclists, not more danger per cyclist.

Correct weakener: "The number of cyclists in the city increased by 60% over the same period." If far more people are cycling, an increase in absolute injuries does not mean increased risk per cyclist — in fact, it might mean the roads are safer.

Key skill: Distinguish absolute numbers from rates when evaluating safety arguments.

Example 3 — Data Insights (Two-Part Analysis)

A project has two tasks: Task X takes 6 hours alone; Task Y takes 4 hours alone. Select the combined rate (tasks per hour) and the time to complete one full project together (hours).

Step-by-step solution:

Step 1 — Individual rates: Task X rate = 1/6 project/hr. Task Y rate = 1/4 project/hr.

Step 2 — Combined rate: 1/6 + 1/4 = 2/12 + 3/12 = 5/12 projects per hour.

Step 3 — Time together: 1 ÷ (5/12) = 12/5 = 2.4 hours

Combined rate = 5/12 tasks/hr  |  Time together = 2.4 hours

TPA tip: Answer both columns independently. The combined rate column and the time column are separate selections.

GMAT Traps to Avoid

Cramming New Material the Night Before

Introducing unfamiliar concepts 12 hours before the exam increases anxiety and confusion. Your brain consolidates learning during sleep, not last-minute studying.

Skipping Breakfast

Your brain runs on glucose. A 2+ hour test on an empty stomach degrades working memory and processing speed. Eat a balanced meal with complex carbohydrates and protein.

Spending Too Long on Questions You Do Not Know

Every minute you over-invest in one hard question is a minute stolen from five easier questions. The GMAT rewards breadth. Guess strategically and move on.

Changing Correct Answers Due to Doubt

Research consistently shows that first instincts are correct more often than second-guesses. Only change an answer if you find a specific logical reason to, not out of anxiety.

Practice Questions — Final Mixed Review

12 questions: 4 Quant, 4 Verbal, 4 Data Insights. Full solutions in each answer.

QUANTQ1

If 3x + 7 = 22, what is the value of 6x − 4?

(A) 20
(B) 24
(C) 26
(D) 30
(E) 34
Show Answer

Answer: (C) 26

From 3x + 7 = 22, we get 3x = 15, so x = 5. Then 6x − 4 = 6(5) − 4 = 30 − 4 = 26. Notice that 6x − 4 = 2(3x) − 4 = 2(15) − 4 = 26 — a faster path by doubling 3x directly.

QUANTQ2

A car travels 240 miles at 60 mph and then 180 miles at 45 mph. What is the total travel time in hours?

(A) 7
(B) 7.5
(C) 8
(D) 8.5
(E) 9
Show Answer

Answer: (C) 8

Time = Distance ÷ Speed. First leg: 240 ÷ 60 = 4 hours. Second leg: 180 ÷ 45 = 4 hours. Total = 4 + 4 = 8 hours. Average speed is NOT simply (60+45)/2 because the distances differ.

QUANTQ3

What is 40% of 25% of 200?

(A) 16
(B) 20
(C) 24
(D) 50
(E) 80
Show Answer

Answer: (B) 20

25% of 200 = 50. Then 40% of 50 = 0.40 × 50 = 20. Shortcut: multiply percentages as decimals: 0.40 × 0.25 × 200 = 0.10 × 200 = 20.

QUANTQ4

A rectangle has a perimeter of 48 cm. If the length is three times the width, what is the area in cm²?

(A) 72
(B) 108
(C) 128
(D) 144
(E) 180
Show Answer

Answer: (B) 108

Let width = w, length = 3w. Perimeter = 2(w + 3w) = 8w = 48, so w = 6. Length = 18. Area = 6 × 18 = 108 cm².

VERBALQ5

"All competitive runners train daily. Maria is a competitive runner. Therefore, Maria trains daily."

This argument is an example of which reasoning pattern?

(A) Hasty generalization — drawing a broad conclusion from limited data
(B) Valid deductive reasoning — the conclusion necessarily follows from the premises
(C) False analogy — comparing two unlike things
(D) Circular reasoning — the conclusion restates a premise
(E) Appeal to authority — using an expert's opinion as evidence
Show Answer

Answer: (B)

This is a valid syllogism (deductive argument). Premise 1: All A are B. Premise 2: Maria is A. Conclusion: Maria is B. If both premises are true, the conclusion must be true. GMAT tests whether you can identify valid vs. flawed argument structures.

VERBALQ6

"Company profits rose 30% after the CEO was replaced. Clearly, the new CEO caused the profit increase."

Which assumption is the argument most relying on?

(A) The new CEO had prior experience in the industry
(B) Profit increases are always tied to leadership changes
(C) No other factors contributed to the profit increase during that period
(D) The previous CEO was performing poorly
(E) Shareholders supported the CEO change
Show Answer

Answer: (C)

The argument assumes causation from correlation (post hoc fallacy). For the causal claim to hold, the argument must assume no other variables (market conditions, product launches, economic boom) caused the profit increase. (C) identifies this necessary assumption. Finding the hidden assumption is a core GMAT CR skill.

VERBALQ7

A passage states: "Rainforest deforestation has accelerated in recent decades despite international agreements." What does the author most likely want to convey?

(A) International agreements are counterproductive and should be abandoned
(B) Rainforests are not economically valuable enough to protect
(C) Existing international agreements have been insufficient to halt deforestation
(D) Deforestation is entirely caused by illegal logging
(E) Only governments, not corporations, can solve the deforestation problem
Show Answer

Answer: (C)

"Despite" is the key signal word. The author contrasts international agreements (a protective measure) against acceleration of deforestation. This implies the agreements have been insufficient — not that they are bad in principle (A is too extreme) or should be abandoned. Always pay attention to contrast words like despite, however, although, yet.

VERBALQ8

Which of the following most strengthens the claim that daily reading improves vocabulary?

(A) Students who read daily also tend to watch less television
(B) A controlled study found that students assigned to read 30 min/day scored 18% higher on vocabulary tests after 6 months compared to a control group
(C) Many famous authors have large vocabularies
(D) Vocabulary tests are an imperfect measure of language ability
(E) Reading difficulty has increased in schools over the past decade
Show Answer

Answer: (B)

A controlled study with a comparison group directly supports a causal claim. (A) shows correlation with an unrelated variable; (C) reverses the direction (authors read, not reading makes you an author); (D) and (E) are irrelevant. On strengthen questions, look for evidence that directly supports the cause-and-effect relationship.

DATA INSIGHTSQ9

A table shows quarterly revenue ($M): Q1=120, Q2=150, Q3=135, Q4=165. What is the percent increase from Q1 to Q4?

(A) 27.5%
(B) 30%
(C) 32.5%
(D) 37.5%
(E) 45%
Show Answer

Answer: (D) 37.5%

% change = (New − Old) / Old × 100 = (165 − 120) / 120 × 100 = 45 / 120 × 100 = 37.5%. Note: The Q2 and Q3 values are distractors — the question only asks about Q1 to Q4.

DATA INSIGHTSQ10

A survey of 400 employees shows: 60% prefer remote work, 25% prefer hybrid, and the rest prefer in-office. How many employees prefer in-office?

(A) 40
(B) 50
(C) 60
(D) 75
(E) 100
Show Answer

Answer: (C) 60

Remote + Hybrid = 60% + 25% = 85%. In-office = 100% − 85% = 15%. Number of employees = 15% × 400 = 0.15 × 400 = 60. Always check that percentages sum to 100% before applying the "rest" logic.

DATA INSIGHTSQ11

A graph shows two companies' market shares over 5 years. Company A started at 40% and grew to 55%. Company B started at 35% and fell to 28%. Which statement is best supported by the data?

(A) Company A's growth was entirely at the expense of Company B
(B) Company A gained market share while Company B lost market share over the period
(C) Company B will continue to lose market share in the future
(D) Company A's products are superior to Company B's products
(E) Company B's management made poor strategic decisions
Show Answer

Answer: (B)

(B) directly restates what the data shows without making an unsupported causal or predictive leap. (A) assumes no other competitors exist. (C) makes a future prediction the data cannot support. (D) and (E) infer causes not shown in the data. On GSI/Table questions: only select conclusions the data directly supports.

DATA INSIGHTSQ12

Worker A completes a task in 12 minutes. Worker B completes the same task in 8 minutes. How many minutes does it take them to complete 5 tasks working together simultaneously?

(A) 18
(B) 20
(C) 22
(D) 24
(E) 25
Show Answer

Answer: (A) 24

Combined rate = 1/12 + 1/8 = 2/24 + 3/24 = 5/24 tasks/min. Time for 1 task = 24/5 = 4.8 min. Time for 5 tasks = 5 × 4.8 = 24 minutes. The combined rate produces exactly 5 tasks in 24 minutes: (5/24) × 24 = 5. Verify by checking: this equals 24 min.

Score Prediction Guide

Use your accuracy on these 12 questions and your mock test data to estimate your GMAT Focus score range. This is a rough guide — official scores depend on question difficulty and adaptive algorithm.

Accuracy Rate Questions Correct (of 12) Estimated GMAT Focus Score Assessment
< 40% 0–4 205–455 Need more study time
40–54% 5–6 455–545 Below average — review fundamentals
55–66% 7–8 545–615 Average — solid foundation
67–80% 8–10 615–695 Above average — strong prep
81–91% 10–11 695–745 Excellent — top-tier ready
92–100% 11–12 745–805 Outstanding — elite performance

Quick Reference Card

// GMAT FOCUS EDITION — MASTER CHEATSHEET

/* STRUCTURE */

Quant: 21 questions | 45 min | 2:08/q

Verbal: 23 questions | 45 min | 1:57/q

DI: 20 questions | 45 min | 2:15/q

Score: 205–805 (adaptive, 10-pt increments)

/* QUANT FORMULAS */

% change = (New - Old) / Old * 100

Distance = Rate * Time

Combined rate = 1/A + 1/B

Area rect = Length * Width

Simple int = P * R * T

Compound int = P * (1 + r/n)^(nt)

Mean = Sum / Count

Median = Middle value (sorted)

Prob(A or B) = P(A) + P(B) - P(A and B)

/* VERBAL SIGNALS */

Contrast : but, however, despite, although, yet

Cause : because, since, therefore, thus, hence

Assumption : look for the unstated gap

Weaken : attack the assumption or add counter-evidence

Strengthen : support the assumption or add supporting evidence

/* DI QUESTION TYPES */

DS — Data Sufficiency: is the info sufficient?

MSR — Multi-Source Reasoning: combine multiple sources

TPA — Two-Part Analysis: solve for two interdependent values

GSI — Graph/Scatter/Image: read and interpret visuals

TA — Table Analysis: sort/filter tabular data

/* PACING RULES */

Check timer : every 5 questions

Hard question : max 3 min, then guess

Last 2 min : answer everything — no blanks

No wrong-answer penalty — always guess

// YOU ARE READY. GO GET YOUR SCORE.

You Are Ready

You have completed all 24 hours. You know the content. You know the strategy. You know the traps. The only thing left to do is walk in and perform.

Trust your preparation. One question at a time. You have done the work — now let the work speak for you.

Hour 23: Speed Drills
Hour 24 of 24
Take Your Mock Test