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SBI PO Quantitative Aptitude Flashcards
50 question-and-answer cards covering Quantitative Aptitude as it is examined in SBI PO. 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 deck
Sampled from the end of the deck, so these are different cards from the ones shown on the syllabus page.
What is discount and on which price is it calculated?
Discount is a reduction on the Marked Price (MP). Discount = MP − SP; Discount% = (Discount/MP)×100.
A shopkeeper marks goods 40% above cost and gives 25% discount. What is his profit/loss %?
SP = 1.40 × 0.75 × CP = 1.05 CP, so 5% profit.
What is the formula for Simple Interest?
SI = (P × R × T)/100, where P = principal, R = rate% per annum, T = time in years.
What is the Compound Interest amount formula for annual compounding?
A = P(1 + R/100)^T, and CI = A − P.
What is the difference between CI and SI for 2 years on principal P at rate R%?
Difference = P × (R/100)².
For half-yearly compounding, how are rate and time adjusted?
Rate becomes R/2 per half-year and time becomes 2T half-years: A = P(1 + R/200)^(2T).
What is the formula for the average of n numbers?
Average = (Sum of observations) / (Number of observations).
What is the average of the first n natural numbers?
Average = (n + 1)/2.
State the alligation rule (rule of mixtures).
(Quantity of cheaper)/(Quantity of dearer) = (Price of dearer − Mean price)/(Mean price − Price of cheaper).
A vessel has milk and water in ratio 3:2 and from it some is replaced by water repeatedly — what governs the remaining milk?
After replacing/removing operations, remaining quantity = Initial × (1 − replaced fraction)^n for n operations (replacement formula).
What are the basic relations among speed, distance and time?
Speed = Distance/Time; Distance = Speed × Time; Time = Distance/Speed.
How do you convert km/h to m/s and vice versa?
km/h to m/s: multiply by 5/18. m/s to km/h: multiply by 18/5.
What is the average speed for equal distances covered at speeds x and y?
Average speed = 2xy/(x + y) (harmonic mean).
How long does a train of length L take to cross a stationary pole versus a platform of length P?
Pole: time = L/speed. Platform: time = (L + P)/speed.
In boats and streams, what are downstream and upstream speeds (boat u, stream v)?
Downstream = u + v; Upstream = u − v. Boat speed = (down+up)/2; Stream speed = (down−up)/2.
If A does a work in x days and B in y days, how long together?
Time together = xy/(x + y) days; their combined one-day work = 1/x + 1/y.
What is the relationship between efficiency and time in work problems?
Efficiency is inversely proportional to time taken. If A is twice as efficient as B, A takes half the time.
A pipe fills a tank in a hours, another empties it in b hours. Net time to fill when both open?
Net fill rate = 1/a − 1/b per hour; time to fill = ab/(b − a) hours (if a < b).
Two inlet pipes fill a tank in p and q hours. Time to fill together?
Time = pq/(p + q) hours.
If the ratio of present ages of A and B is m:n and sum of ages is S, how do you find each age?
A = S × m/(m+n), B = S × n/(m+n).
In age problems, how do you represent ages 'x years ago' and 'x years hence'?
x years ago: subtract x from present age. x years hence: add x to present age. Set up equations from the given conditions.
A father is 3 times as old as his son; in 12 years he will be twice as old. How to set the equations?
Let son = s, father = 3s. Then 3s + 12 = 2(s + 12) → 3s + 12 = 2s + 24 → s = 12, father = 36.
What is the sum of the first n natural numbers and sum of their squares?
Sum = n(n+1)/2; Sum of squares = n(n+1)(2n+1)/6.
What is the difference between a number reversed and the original two-digit number?
For a two-digit number 10a+b, reversing gives 10b+a; the difference is 9(a−b), always a multiple of 9.
What this deck covers
The Quantitative Aptitude deck follows the SBI PO Quantitative Aptitude syllabus — 3 chapters and 10 topics — so questions land on material that is genuinely examinable rather than trivia around it. That works out to roughly 16.7 cards per chapter.
Answers are written to be recallable, not just readable — averaging about 71 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 flashcards FAQ
How many Quantitative Aptitude flashcards are in this SBI PO 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 SBI PO 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 cards cover?
They follow the SBI PO Quantitative Aptitude syllabus — 3 chapters and 10 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.