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IBPS SO Quantitative Aptitude (Numerical Ability) Flashcards
50 question-and-answer cards covering Quantitative Aptitude (Numerical Ability) as it is examined in IBPS SO. 24 of them are printed below, taken from across the deck — no signup, no paywall on the preview.
24 sample cards from the Quantitative Aptitude (Numerical Ability) deck
Sampled from the end of the deck, so these are different cards from the ones shown on the syllabus page.
State the basic relation between speed, distance and time.
Speed = Distance/Time; Distance = Speed × Time; Time = Distance/Speed.
How do you convert km/hr to m/s and vice versa?
km/hr to m/s: multiply by 5/18. m/s to km/hr: multiply by 18/5.
Time taken for a train of length L to cross a stationary pole vs a platform of length P?
Pole: L/speed. Platform: (L + P)/speed (must cover its own length plus the platform).
Relative speed of two trains moving in same vs opposite directions?
Same direction: subtract speeds (v₁ − v₂). Opposite direction: add speeds (v₁ + v₂).
If A does work in 'a' days and B in 'b' days, time taken together?
Together = (a × b)/(a + b) days; combined one-day work = 1/a + 1/b.
A pipe fills a tank in x hours; an outlet empties it in y hours. Net time to fill if both open?
Net fill rate = 1/x − 1/y per hour; time = xy/(y − x) hours (only fills if x < y).
State the alligation rule for mixing two ingredients.
(Quantity cheaper)/(Quantity dearer) = (Dearer price − Mean price)/(Mean price − Cheaper price).
In partnership, how is profit shared when capitals and times differ?
Profit is divided in the ratio of (Capital × Time) for each partner.
A vessel has milk-water in ratio; replace part with water repeatedly. Milk left after n replacements?
Milk left = Initial × (1 − replaced/total)ⁿ. This is the classic milk-water replacement formula.
State the average formula and effect of adding/removing a value.
Average = Sum of observations / Number of observations. Adding a value above the average raises it; below lowers it.
How do you handle 'average of consecutive numbers'?
Average of consecutive (or evenly spaced) numbers = (first + last)/2, equal to the middle term.
State age problem basics: present age x, how to express 'n years ago' and 'after n years'.
n years ago: (x − n). After n years: (x + n). Set up equations from ratio/sum conditions given.
Give mensuration formulas for area of rectangle, triangle, and circle.
Rectangle = l × b; Triangle = ½ × base × height; Circle = πr².
Give volume formulas for cube, cuboid, cylinder, and sphere.
Cube = a³; Cuboid = l×b×h; Cylinder = πr²h; Sphere = (4/3)πr³.
In Tabular DI, what is the first step before answering questions?
Read row/column headers and units carefully, note totals given, and identify what each cell represents to avoid misreading data.
In a Line/Bar Graph DI, how do you compute percentage increase between two years?
% increase = ((Later value − Earlier value)/Earlier value) × 100. Read values precisely from the axis scale.
In a Pie Chart, how do you convert a sector's degrees or percentage into a value?
Value = (sector% × total) or (sector degrees/360 × total). 1% = 3.6°, so degrees = % × 3.6.
What characterizes a Caselet (Mixed) DI question?
Data is given as a paragraph of text (no chart/table); you must extract numbers, often build your own table, then solve.
In Missing Data DI, how do you find an unknown cell?
Use given totals, ratios, or relationships (e.g., row/column totals, percentages) stated in the problem to back-calculate the missing value.
In Quantity Comparison DI, what are the typical answer options?
Compute Quantity I and Quantity II, then choose: I>II, I<II, I≥II, I≤II, or I=II / no relation. Compare the two derived quantities.
What is asked in a Data Sufficiency question (not the answer itself)?
Whether the given statements are SUFFICIENT to answer the question — using Statement I alone, II alone, either, both together, or neither. You do not compute the final value.
State the formulas for permutation (nPr) and combination (nCr).
nPr = n!/(n−r)! (order matters); nCr = n!/(r!(n−r)!) (order does not matter).
State the basic probability formula and its range.
P(E) = (Favorable outcomes)/(Total outcomes); 0 ≤ P(E) ≤ 1. P(not E) = 1 − P(E).
For a quadratic ax²+bx+c=0, give the sum and product of roots, and how to compare two roots' equations.
Sum of roots = −b/a; Product = c/a. To solve, factor or use x = [−b ± √(b²−4ac)]/2a, then compare the two roots with the other equation's roots.
What this deck covers
The Quantitative Aptitude (Numerical Ability) deck follows the IBPS SO Quantitative Aptitude (Numerical Ability) syllabus — 4 chapters and 18 topics — so questions land on material that is genuinely examinable rather than trivia around it. That works out to roughly 12.5 cards per chapter.
Answers are written to be recallable, not just readable — averaging about 97 characters, which is long enough to carry the reasoning and short enough to say out loud.
A deck like this earns its keep on the second and third pass. Read the syllabus first so you know the shape of the subject, then use the cards to find the specific facts that have not stuck.
Quantitative Aptitude (Numerical Ability) flashcards FAQ
How many Quantitative Aptitude (Numerical Ability) flashcards are in this IBPS SO deck?
50 cards. This page previews 24 of them, sampled evenly across the deck so you can judge the difficulty before installing anything.
Are these IBPS SO flashcards free?
Yes. The preview here is free to read with no signup, and the full 50-card deck is free inside the Examius app.
What do the Quantitative Aptitude (Numerical Ability) cards cover?
They follow the IBPS SO Quantitative Aptitude (Numerical Ability) syllabus — 4 chapters and 18 topics — so the questions track what is actually examinable.
How should I use these flashcards?
Read the syllabus first so you know the shape of the subject, then drill the deck. Examius schedules each card with spaced repetition, so cards you keep missing come back sooner and ones you know drift further apart.