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🇮🇳 RBI Grade B Officer · flashcards
RBI Grade B Officer Quantitative Aptitude and Data Interpretation Flashcards
50 question-and-answer cards covering Quantitative Aptitude and Data Interpretation as it is examined in RBI Grade B Officer. 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 and Data Interpretation deck
Sampled from the end of the deck, so these are different cards from the ones shown on the syllabus page.
Two trains moving in opposite directions cross each other; what relative speed is used?
The sum of their speeds.
What is the relative speed of two trains moving in the same direction?
The difference of their speeds.
In boats and streams, what are upstream and downstream speeds if boat speed is b and stream speed is s?
Downstream = b + s; Upstream = b - s.
If A can do a job in n days, what is A's one-day work?
1/n of the work.
If A and B do a job in a and b days respectively, in how many days do they finish together?
ab/(a+b) days.
What is the standard form of a quadratic equation and its roots formula?
ax^2 + bx + c = 0; roots = [-b ± sqrt(b^2 - 4ac)] / 2a.
What does the discriminant b^2 - 4ac tell you about the roots of a quadratic?
Positive: two distinct real roots; zero: two equal real roots; negative: no real (complex) roots.
For ax^2 + bx + c = 0, what are the sum and product of the roots?
Sum of roots = -b/a; product of roots = c/a.
When you multiply or divide both sides of an inequality by a negative number, what happens?
The inequality sign reverses.
What is the formula for the number of permutations of n distinct items taken r at a time?
nPr = n! / (n - r)!.
What is the formula for combinations of n distinct items taken r at a time?
nCr = n! / [r! (n - r)!].
What is the relationship between nPr and nCr?
nPr = nCr x r!.
State the basic definition of the probability of an event.
Probability = (number of favourable outcomes) / (total number of equally likely outcomes).
For mutually exclusive events A and B, what is P(A or B)?
P(A) + P(B).
For independent events A and B, what is P(A and B)?
P(A) x P(B).
What is the nth term of an arithmetic progression with first term a and common difference d?
a + (n - 1)d.
What is the sum of the first n terms of an AP?
S = n/2 [2a + (n-1)d], or n/2 (first term + last term).
What is the nth term of a geometric progression with first term a and common ratio r?
a x r^(n-1).
What is the sum to infinity of a GP with |r| < 1?
a / (1 - r).
In a pie chart, how is each category's value related to its central angle?
Value/Total = central angle/360 degrees; each percentage corresponds to 3.6 degrees.
What is a caselet in Data Interpretation?
A DI set where data is presented as a paragraph of text rather than a table or graph, requiring you to extract values yourself.
In DI, how do you compute percentage change between two periods?
[(New value - Old value) / Old value] x 100.
In a Data Sufficiency question, what are you required to determine?
Whether the given statements provide enough information to answer the question, not the actual numerical answer itself.
In standard Data Sufficiency answer options, what does it mean when 'each statement alone is sufficient'?
Statement I alone answers the question AND Statement II alone answers it independently; either one is enough on its own.
What this deck covers
The Quantitative Aptitude and Data Interpretation deck follows the RBI Grade B Officer Quantitative Aptitude and Data Interpretation 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 46 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 and Data Interpretation flashcards FAQ
How many Quantitative Aptitude and Data Interpretation flashcards are in this RBI Grade B Officer 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 RBI Grade B Officer 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 and Data Interpretation cards cover?
They follow the RBI Grade B Officer Quantitative Aptitude and Data Interpretation 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.