GRE Quant Practice Guide for Indian Engineering Students: Topics, Traps & a 4-Week Drill Plan

What GRE Quant looks like on the shorter format

Section-level adaptivity is the part students underestimate. The first Quant section decides which score band is even reachable, so a slow, panicky start does more damage than a few misses at the end. Treat section one as the one that matters most and protect your accuracy there.

Four question formats appear: Quantitative Comparison (compare Quantity A and Quantity B), multiple-choice with one answer, multiple-choice with one or more answers, and numeric entry where you type the number. There is no negative marking, so every question must be answered — a blank is strictly worse than a guess.

Topic weights — where the questions actually come from

Shares are indicative and drawn from official practice sets — do not build a plan that assumes exact counts. The stable takeaway is that arithmetic plus algebra is roughly half the test, and geometry is smaller than most students expect. Engineering students routinely over-prepare geometry (it feels like "real maths") and under-prepare percentages, ratios and number properties, which is where the volume is.

Statistics questions rarely ask you to compute a standard deviation. They ask whether it increases, decreases or stays the same when a data set changes — a conceptual question, and one that a calculator cannot help with.

Quantitative Comparison — the format that decides your score

Roughly a third of the section is Quantitative Comparison, and it is where BTech students bleed the most points. You compare two quantities and pick one of four fixed choices: A is greater, B is greater, they are equal, or the relationship cannot be determined from the information given. The fourth option is the whole game.

• You almost never need the actual value. If Quantity A is 17% of 340 and Quantity B is 34% of 170, computing either one is wasted time — they are equal by construction.
• Test the boundary cases, not the convenient ones: 0, 1, a negative, a fraction between 0 and 1, and a large number. A relationship that holds for x = 2 and breaks for x = 0.5 is answer D.
• "Cannot be determined" is a real answer, not a cop-out — but it can never be right when both quantities are pure numbers with no variables. That single rule eliminates a choice on many questions.
• Do not solve for a variable when you can compare structurally: subtract the same term from both sides, divide both by the same positive number, or square both when both are known to be positive.

The five traps that cost engineering students points

• Answering a different question. The stem asks for the increase; the trap answer is the new value. The stem asks for x; the trap answer is 2x. Underline what is being asked before you start solving — most wrong answers on the test are deliberately the result of one plausible misread.
• Assuming positive integers. Unless the question says so, a variable can be negative, zero or a fraction. Squaring, inequalities and "which is greater" questions are built around this assumption failing.
• Trusting the diagram. GRE figures are not drawn to scale unless explicitly stated. An angle that looks like 90° is not 90° until the question says it is.
• Over-using the calculator. The on-screen calculator is slow and has no memory worth using. Fractions, factoring and estimation beat it on most questions; reaching for it reflexively is a common reason strong students run out of time.
• Spending four minutes on one question. At roughly 105 seconds per question, one stubborn problem costs you two easy ones later in the section. Mark it, move on, come back — the easy question you never reached was worth exactly as many points.

Sample questions in the real style

• Quantitative Comparison: x is an integer and x² = 49. Quantity A: x. Quantity B: 7. → Answer is D, not C — x can be −7. This single pattern (forgetting the negative root) appears in some form on almost every practice test.
• Numeric entry: A shirt is marked up 25% and then sold at a 20% discount off the marked price. The final price is what percent of the original cost? → 100%. Successive percentage changes multiply (1.25 × 0.80), they do not add; students who subtract get 105% or 95%.
• Multiple answers: If 3 < x < 8 and x is an integer, which of the following could be the value of x² − x? Select all that apply. → Test each integer 4 through 7 rather than manipulating the expression; brute force is genuinely faster here, and the format gives no partial credit for a nearly-right set.
• Data interpretation: given a bar chart of revenue by year, "the percent increase from 2023 to 2025" is computed against the 2023 value, not the chart maximum. Almost every DI set contains one question whose only difficulty is choosing the correct denominator.

A 4-week drill plan (alongside college)

• The error log is the plan. One line per mistake: the question, why you got it wrong, and which of the five traps it was. Re-solve every entry seven days later. Students who keep this log honestly improve faster than students who do twice the volume without one.
• Categorise mistakes as concept gap, careless error or timeout — the fixes are completely different. Engineering students usually find 70%+ of their errors are careless or timeouts, which means more theory revision would have changed nothing.
• Use the official ETS POWERPREP practice tests for your timed sittings — they are the only questions calibrated to real difficulty. Save at least one for the final week.
• Four weeks is enough for Quant specifically if your fundamentals are intact, which is usually true for a BTech student. It is not enough for Verbal — plan 8–12 weeks overall if you need both.

What a realistic Quant target looks like

Quant carries more weight than Verbal for engineering admits, and admissions committees expect Indian applicants to score well here — which cuts both ways. A 168Q reads as expected rather than exceptional, while a 155Q on an engineering application is a visible weak spot. Bands above are indicative; every department publishes its own averages and those are the numbers to plan against.

One honest caveat: if your target list is entirely GRE-optional and your CGPA and projects are strong, those four weeks may be worth more spent on projects and interview practice than on drilling percentages.

Frequently asked questions