IBPS RRB PO flashcards

33 cards. Read the term and the definition here. The deck at the top of this page is optional.

Syllogism possibility case

A conclusion starting with 'possibility' is valid if at least one Venn arrangement satisfies it without contradicting any given statement. Draw alternative diagrams before deciding.

Opposite letter pairs

In the English alphabet, letters whose positions sum to 27 are opposites: A-Z, B-Y, C-X, down to M-N. Coding questions often substitute each letter with its opposite.

Rank formula

If a person is p-th from the top and q-th from the bottom in a row, total people = p + q − 1. Use it to find class strength or missing rank quickly.

Circular arrangement facing centre

When everyone faces the centre, a person's left is clockwise and right is anticlockwise. Reverse this rule when people face outward from the circle.

Inequality chain rule

Symbols of the same direction combine directly: A > B ≥ C gives A > C. A conclusion is false if it needs a link the chain does not provide.

Blood relation generation rows

Draw separate horizontal rows for each generation and mark gender beside names. Vertical lines show parent-child links; horizontal lines show marriage or siblings.

Input-output shifting rule

In machine input questions, compare step 1 with the input to identify whether numbers sort ascending, words sort alphabetically, or both alternate by position.

Successive percentage change

Net change for a% then b% equals a + b + (ab/100). If a rise of x% is followed by a fall of x%, the net result is a loss of x²/100 percent.

Compound interest formula

CI = P(1 + R/100)^T − P for annual compounding. For half-yearly, halve the rate and double the time; for quarterly, quarter the rate and quadruple the time.

Train crossing formula

Time to cross a platform or another train = total distance ÷ relative speed. Opposite directions add speeds; same direction subtracts the slower from the faster.

Alligation rule

To mix two items priced c and d to get mean m, the quantity ratio is (m − c) : (d − m). Cheaper quantity takes the difference with the dearer price.

Work and efficiency

If A finishes in x days and B in y days, together they take xy/(x + y) days. Efficiency is inversely proportional to the time taken for the same work.

Boat and stream

Downstream speed equals boat speed plus stream speed; upstream equals boat minus stream. Boat speed is the average of the two, stream speed half their difference.

Simple interest

SI = P × R × T / 100, calculated only on the original principal. Amount = principal + interest, and interest is identical every year at a fixed rate.

Combination formula

nCr = n! / [r!(n − r)!] counts selections where order does not matter. Use nPr when order matters, such as seating people in numbered chairs.

Cylinder mensuration

Volume of a cylinder = πr²h; curved surface area = 2πrh; total surface area = 2πr(r + h). Use π = 22/7 when the radius is a multiple of seven.

Repetition dilution formula

After replacing volume n times from a container of total volume V with pure liquid, remaining pure = initial × (1 − replacement/V)^n. Applies to milk-water mixtures.

Monetary Policy Committee

The six-member RBI committee that sets the repo rate, reverse repo, CRR and SLR stance. It has three RBI members and three government-nominated external members.

Repo rate

The rate at which RBI lends short-term funds to banks against government securities. Raising it tightens liquidity and is used to control inflation.

CRR and SLR

CRR is the cash share of net demand and time liabilities held with RBI, earning no interest. SLR is held in approved securities and earns interest.

Priority sector lending

Scheduled commercial banks must lend 40% of adjusted net bank credit to priority sectors, including 18% to agriculture and 7.5% to micro-enterprises.

DICGC deposit insurance

The RBI subsidiary insuring bank deposits up to five lakh rupees per depositor per bank, covering both principal and accumulated interest across accounts.

Non-performing asset

A loan becomes an NPA when principal or interest is overdue for 90 days. It is substandard, then doubtful, then a loss asset as delay grows.

PM MUDRA Yojana

A scheme providing collateral-free loans to micro-enterprises in three tiers: Shishu up to fifty thousand, Kishore up to five lakh, and Tarun up to ten lakh rupees.

Financial regulators map

SEBI regulates securities markets, IRDAI insurance, PFRDA pensions, RBI banking and payments, and IFSCA international financial services centres. Each has defined statutory jurisdiction.

Para jumble opening sentence

The first sentence usually introduces a full noun with no unresolved pronoun and no contrast connector. Later sentences refer back using pronouns or linking words.

Cloze test strategy

Read the full passage before filling blanks, then check each option for grammar, collocation and tone. Eliminate options that fit meaning but break syntax.

Subject-verb agreement

A singular subject takes a singular verb regardless of intervening phrases. Words like each, every, either and neither are singular; collective nouns vary with usage.

Reading comprehension inference

Inference answers must follow logically from stated facts without adding outside knowledge. Options that overstate certainty or widen scope are typically incorrect.

Sentence improvement rule

Choose the option that is grammatically correct and keeps the original meaning. Reject choices with redundancy, changed tense or altered intent.

मुहावरा और लोकोक्ति

मुहावरे का अर्थ शब्दों के शाब्दिक अर्थ से भिन्न होता है और वह वाक्य में क्रिया की तरह प्रयुक्त होता है, जबकि लोकोक्ति पूर्ण वाक्य होती है।

संधि के प्रकार

स्वर संधि में स्वरों का मेल होता है, व्यंजन संधि में व्यंजन का, और विसर्ग संधि में विसर्ग का परिवर्तन होता है। जुड़े अक्षरों से प्रकार पहचानें।

उपसर्ग और प्रत्यय

उपसर्ग शब्द के आरम्भ में जुड़कर अर्थ बदलता है, जैसे 'अन' से अनुचित। प्रत्यय शब्द के अंत में जुड़कर नया शब्द या भेद बनाता है।