Q&A: practice questions with answers

Concept: Only letters strictly between positions 1 and 7 are counted; then remove vowels.

1. In EXAMINATION, the 7th letter is the second A.
2. Letters in positions 2 to 6 read X-A-M-I-N.
3. Remove the vowels (A, I): left with X, M, N → 3 consonants.

Trick: 'Between' means exclude both end letters – count only positions 2 to 6.

Answer: (A) 3

Concept: Find the option identical to the given address, character by character.

1. Check the number: (D) has 41/B – rejected.
2. Check 'Silver Oaks Apartment': (A) writes 'Oak', (B) writes 'Apartments' – rejected.
3. (C) matches every word, comma and PIN 400050.

Trick: Scan for small changes first – digit swaps and an extra/missing 's' are the usual traps.

Answer: (C) 14/B, Silver Oaks Apartment, Linking Road, Mumbai, Maharashtra - 400050

Concept: Track each letter position separately; each has its own fixed jump.

1. 1st letters L→P→T→X: +4 each, so X+4 = B (after Z restart at A).
2. 2nd letters G→J→M→P: +3, so P+3 = S.
3. 3rd letters B→D→F→H: +2, so H+2 = J.
4. Next term = BSJ.

Trick: Positional values: X = 24, 24 + 4 = 28 → 28 − 26 = 2 = B.

Answer: (D) BSJ

Concept: A brother of someone's child is also that person's child.

1. Q is R's daughter → R is a parent of Q.
2. P is Q's brother → P is male and has the same parent R.
3. So P is R's son.

Trick: Gender of the answer comes from P himself: 'brother' → male → son.

Answer: (B) Son

Concept: Find P's relation to S first, then go one generation up.

1. R is S's daughter; P is R's brother → P is S's son.
2. S's mother is P's grandmother.
3. A male grandchild = grandson.

Trick: Q is extra information – it does not change the answer.

Answer: (D) Grandson

Concept: Terms sit next to perfect squares, alternately 1 less and 1 more.

1. $3=2^2-1,10=3^2+1,15=4^2-1,26=5^2+1$.
2. $35=6^2-1,50=7^2+1$.
3. Next: $8^2-1=64-1=63$.

Trick: If terms are close to 4, 9, 16, 25…, check $n^2\pm 1$ immediately.

Answer: (A) 63

Concept: Pick the group whose numbers share one special property.

1. 4, 9, 16, 25 = $2^2,3^2,4^2,5^2$ – all perfect squares.
2. Other groups are only equal-gap sequences (gap 2, 3, 4) with no common special type.
3. 1, 3, 5, 7 contains 1, which is not prime – not a prime group either.

Trick: Common difference alone is weak; a named property (squares, primes, cubes) wins.

Answer: (C) 4, 9, 16, 25

Concept: Each term = previous term × 2 + 2.

1. 2 → 6 → 14 → 30 → 62 (check $30\times 2+2=62$).
2. Next = $62\times 2+2=126$.

Trick: Differences 4, 8, 16, 32 double each time → next difference 64; $62+64=126$.

Answer: (A) 126

Concept: An assumption is what the speaker must take for granted for the advice to make sense.

1. Calling for a tax 'immediately' implies present voluntary efforts are not enough → I is implicit.
2. A tax works only if a cost changes how industries behave → II is implicit.
3. If carbon-neutral energy were already cheap and everywhere, no tax would be needed – III is not assumed.

Trick: Extreme words like 'completely' and 'universally' usually make an assumption invalid.

Answer: (A) Only I and II are implicit

Concept: A conclusion must follow directly from the statement, not from guesswork about the past.

1. Airbags are now compulsory for every manufacturer → all new cars will have them: I follows.
2. The rule says nothing about earlier practice; some makers may already have fitted airbags → II does not follow.

Trick: Statements about the future rule rarely prove anything about the past.

Answer: (A) Only Conclusion I follows

Concept: Arrange the historical periods from oldest to latest.

1. Ancient Greece (from c. 8th century BCE) is earliest, then the Roman Empire (27 BCE–476 CE).
2. After Rome's fall: Medieval Period (c. 5th–15th century).
3. Then Renaissance (c. 14th–17th century), and finally Industrialization (from mid-18th century) → 2, 4, 3, 1, 5.

Trick: Only (A) and (B) start 2, 4; Medieval must come before Renaissance ('rebirth' after the Middle Ages) → (A).

Answer: (A) 2, 4, 3, 1, 5

Concept: Pair each instrument with the direct action it performs.

1. Scalpel (surgical knife) → incise (cut).
2. Microscope → enlarge (magnify) small objects.
3. Research, discover, analyze are human goals, not the instrument's own action.

Trick: Ask 'what does the tool physically do?' – the answer is a verb of action.

Answer: (B) Enlarge

Concept: Four words share a meaning; the odd one has the opposite sense.

1. Tranquil, Serene, Calm, Peaceful = quiet, undisturbed.
2. Turbulent = stormy, full of disorder – an antonym of the rest.

Trick: When four words are synonyms, the antonym is the odd one.

Answer: (D) Turbulent

Concept: Identify which is not one of the seven SI base units.

1. Metre (length), second (time), ampere (current), candela (luminous intensity) are SI base units.
2. The base unit of mass is the kilogram; gram is only $\frac{1}{1000}$ of it.

Yaad rakhein: 7 base units: m, kg, s, A, K, mol, cd – 'kg' is the only base unit with a prefix.

Answer: (B) Gram

Concept: Break the word into pairs of two letters and reverse each pair.

1. COMPUTER → CO|MP|UT|ER → OC|PM|TU|RE = OCPMTURE ✓
2. GENERATE → GE|NE|RA|TE.
3. Swap each: EG|EN|AR|ET = EGENARET.

Trick: Answer must start 'EG' and end 'ET' – only (C) fits.

Answer: (C) EGENARET

Concept: End letters shift forward and middle letters get number codes; similar letters get related numbers.

1. HUNT: last letter T → U (+1); so in JUMP, P → Q and J → K (as all options start with K).
2. Middle letters: U → 5, N → 9.
3. JUMP has U (code 5) and M, which is just before N → 9 − 1 = 8.
4. Code = K58Q.

Trick: Eliminate fast: last letter must be Q (A, D) and U must stay 5 → only K58Q.

Answer: (A) K58Q

Concept: Compare letters left to right until they differ.

1. All begin with 'tra'; 4th letters: trace (c), tractor (c), trap (p), travel (v).
2. v is latest in the alphabet → travel comes last.
3. Order: trace, tractor, trap, travel.

Trick: Find the first position where words differ – the largest letter there is last.

Answer: (A) travel

Concept: # = 0 and $ = 1, so the system is plain binary.

1. 241 = 128 + 64 + 32 + 16 + 1.
2. Binary: 1111 0001.
3. Replace 1 → $, 0 → #: $$$$###$.

Trick: 241 = 255 − 14; 255 is eight 1s, removing 8, 4, 2 gives 11110001.

Answer: (D) $$$$###$

Concept: Group by what the body orbits.

1. Saturn, Venus, Jupiter are planets revolving around the Sun.
2. The Moon is Earth's natural satellite – it revolves around a planet.

Yaad rakhein: Venus and Mercury are the only planets with no moon at all.

Answer: (D) Moon

Concept: Each letter is moved a fixed number of places forward.

1. F→H, R→T, O→Q, G→I, S→U: every letter +2.
2. VAPOR: V→X, A→C, P→R, O→Q, R→T.
3. Code = XCRQT.

Trick: Check just the 3rd letter: P + 2 = R → only (A) has R there.

Answer: (A) XCRQT