IBPS RRB GBO flashcards
IBPS RRB GBO · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Syllogism 'Some' conclusion rule
- Two 'Some' premises yield no definite conclusion. 'Some A are B' plus 'Some B are C' cannot fix any relation between A and C; at most a possibility can be stated.
- Either-or case in inequality
- When two conclusions form a complementary pair and neither is individually true, the answer is 'either-or'. The classic pair is A ≤ B with A > B over the same elements.
- Circular seating facing centre
- When everyone faces the centre, a person's left is clockwise and the right is anticlockwise; facing outward reverses both. Fix one person first, then place the rest.
- Ranking position formula
- Total persons in a row = rank from left + rank from right − 1. Use it whenever a person's position from both ends of the row is given.
- Blood relation coded symbols
- Draw a family tree and mark gender separately from relation. Vertical lines show generations and horizontal lines show marriage or siblings; never infer gender from a name alone.
- Letter position shortcut EJOTY
- EJOTY gives positions 5, 10, 15, 20 and 25 for E, J, O, T and Y. Use these anchors to reach any letter's numeric position quickly in coding and alphabet series questions.
- Direction sense net displacement
- Track north-south and east-west movement separately, then apply Pythagoras for the shortest distance. Left and right turns depend on the direction currently faced, not on the page.
- Floor puzzle solving logic
- Number floors from bottom to top, convert above and below statements into inequalities, and start from the most constrained clue. Two attributes per person usually need a grid.
- Simple interest formula
- SI = (P × R × T)/100, where P is principal, R the annual rate percent and T the time in years. Amount = P + SI, and interest is charged only on the original principal.
- Compound interest formula
- A = P(1 + R/100)^T and CI = A − P. For half-yearly compounding use R/2 with 2T; for quarterly use R/4 with 4T. CI exceeds SI whenever T is more than one year.
- Successive percentage change
- Two successive changes of a% and b% produce a net change of a + b + ab/100 percent, keeping signs. A discount followed by a markup uses exactly the same expression.
- Work and time combined rate
- If A finishes a job in x days and B in y days, together they take xy/(x + y) days because their rates add. Subtract the rate when a worker or pipe hinders the work.
- Train crossing a pole
- Time = length of the train ÷ speed of the train. To cross a platform add the platform length to the train length, and convert km/h to m/s by multiplying by 5/18.
- Alligation rule for mixtures
- Ratio of cheaper to dearer quantity = (dearer price − mean price) : (mean price − cheaper price). The same relation handles mixture, average and profit-mix problems with two components.
- Boats and streams
- Downstream speed = boat speed in still water + stream speed, upstream = boat − stream. Still-water speed is the average of the two and stream speed is half their difference.
- Repo rate
- The rate at which RBI lends short-term funds to banks against government securities under the liquidity adjustment facility. A rise in repo makes credit costlier and helps control inflation.
- Cash Reserve Ratio
- The share of net demand and time liabilities that scheduled commercial banks keep as cash with RBI. It earns no interest, and RBI uses it to drain or inject liquidity.
- Statutory Liquidity Ratio
- The portion of net demand and time liabilities that banks must hold in cash, gold or approved government securities. Unlike CRR, these holdings earn interest for the bank.
- NPA classification norm
- A loan becomes a non-performing asset when principal or interest is overdue for more than 90 days. Sub-standard, doubtful and loss assets are the later stages of NPA classification.
- DICGC deposit insurance cover
- The Deposit Insurance and Credit Guarantee Corporation insures each depositor up to ₹5 lakh per bank, covering both principal and interest. It is a wholly owned subsidiary of RBI.
- Priority sector lending target
- Domestic scheduled commercial banks must lend 40% of adjusted net bank credit to priority sectors, with an 18% agriculture sub-target. Shortfalls are parked in the RIDF.
- RRB establishment and ownership
- Regional Rural Banks were set up on 2 October 1975 and formalised by the RRB Act 1976. Shareholding is central government 50%, sponsor bank 35% and state government 15%.
- Subject-verb agreement rule
- A singular subject takes a singular verb. Phrases between subject and verb do not change agreement; each, every, either and neither take singular verbs, while both and few take plural.
- Parallelism in sentence correction
- Items joined by and, or, not only…but also must share the same grammatical form: nouns with nouns, infinitives with infinitives. Break the sentence and test each element against the first.
- Active to passive conversion
- Move the object to the subject position, change the verb to be + past participle, and add the original subject after 'by'. The tense of the original verb stays unchanged.
- Cloze test strategy
- Read the whole passage first, then pick the word fitting both meaning and collocation. Connectors such as although or therefore signal contrast or result and narrow the choice.
- Para jumble opening sentence
- The first sentence usually introduces a full noun with no pronoun reference and no connector. Sentences heavy with pronouns, or beginning with but or therefore, cannot open the paragraph.
- RAM versus ROM
- RAM is volatile working memory that loses data when power goes off; ROM is non-volatile and stores firmware such as the BIOS. RAM is read-write, whereas ROM is mainly read-only.
- Excel formula basics
- Every formula begins with '='. A reference like B4 is relative, $B$4 absolute and $B4 mixed; SUM, AVERAGE and IF are the functions most used in spreadsheet questions.
- Keyboard shortcut Ctrl+Z
- Ctrl+Z undoes the last action in most Windows applications and Ctrl+Y redoes it. Ctrl+C copies, Ctrl+X cuts, Ctrl+V pastes and Ctrl+S saves the current file.
- Firewall function
- A firewall filters incoming and outgoing network traffic using preset rules, blocking unauthorised access while allowing approved connections. It may be hardware, software or a combination of both.
- Email CC and BCC
- CC recipients are visible to everyone along with the main recipient, while BCC recipients stay hidden from all. BCC is used for large mailings to protect addresses and privacy.