Q&A: practice questions with answers

Concept: Split a phrase into its words and combine their meanings.

1. Sophisticated = advanced, complex, refined.
2. Realignment = rearranging/restructuring into a new order.
3. Together: a complex and subtle restructuring; 'simplistic' contradicts 'sophisticated', 'chaotic'/'immediate reversal' add ideas not present.

Trick: Reject any option whose adjective is the opposite of the given adjective (simplistic ≠ sophisticated).

Answer: (A) a complex and subtle restructuring

Concept: Detail questions are answered by locating the exact line in the passage.

1. The 'However…' sentence of paragraph 2 lists three hurdles: too little varied data, high cost of integration, and bias in the code.
2. Option C repeats these barriers directly.
3. Speed is presented as a strength; mechanical parts and rural clinics are never mentioned.

Trick: Scan for signal words like 'However… obstacles' — the barriers follow right after.

Answer: (C) Insufficient access to diverse datasets and integration costs

Concept: Arrange events in the order they actually happen.

1. P: he picks the meal and clicks to order (first step).
2. Q: enters address and checks out → R: payment processed.
3. S: 'Now he waits' — natural ending. Order: P, Q, R, S.

Trick: Find the opener (first action) and the closer ('Now…'); the middle usually falls into place.

Answer: (A) P, Q, R, S

Concept: A growth story moves from learning → practice → achievement → final status.

1. Q: she reads plant guides (learning starts).
2. P: daily tending improves soil and pruning (practice).
3. S: grows a perfect rose for the contest (achievement) → R: now a gardener (conclusion).

Trick: R contains 'had mastered… was now' — a clear concluding sentence; only options ending in R remain (A, C), and Q must precede P.

Answer: (C) Q, P, S, R

Concept: Words that sound alike are chosen by meaning in context.

1. Council = an elected governing body → city council.
2. Counsel = advice (often legal) → legal counsel.
3. Cancel/conceal don't fit either blank.

Trick: Counsel = advice from a lawyer (both have 's'); council = group of people (both have 'c').

Answer: (A) council, counsel

Concept: Position from one end + position from other end = Total + 1.

1. Rank from bottom = 42 − 15 + 1.
2. = 28.

Trick: Top + Bottom = Total + 1 → 15 + 28 = 43 = 42 + 1 ✔. Forgetting '+1' gives the trap 27.

Answer: (C) 28th

Concept: Decode the statement from the end that is closest to the speaker.

1. Only son of Rakhi's grandmother = Rakhi's father.
2. Man's brother's father = the man's own father.
3. Same father → man and Rakhi are siblings; Rakhi is female → sister.

Trick: 'Only son of my grandmother/grandfather' = my father (in such questions). Spot it instantly.

Answer: (B) Sister

Concept: Parents of one set of siblings are husband and wife.

1. P, Q, R are siblings (P brother of Q, Q sister of R).
2. S = mother of P → mother of all; T = father of R → father of all.
3. Mother and father of the same children → S is T's wife.

Trick: Gender of S comes from 'mother' — so the answer must be a female relation; Wife is the only fit.

Answer: (B) Wife

Concept: Replace 'my father's son' with 'me' when the speaker has no brother.

1. No brother → my father's son = Trump himself.
2. So: that man's father = Trump.
3. Hence the man is Trump's son.

Trick: No brother + 'my father's son' = 'I'. Then read the sentence again — answer pops out.

Answer: (A) His Son

Concept: Divide both terms of a ratio by their HCF.

1. Orange : Black = 54 : 36.
2. HCF(54, 36) = 18.
3. $\frac{54}{18}:\frac{36}{18}$ = 3 : 2.

Trick: Keep the asked order (orange first); 2 : 3 is the reversed trap.

Answer: (A) 3 : 2

Concept: $\text{Distance}=\text{Speed}\times \text{Time}$ (time in hours when speed is in km/hr).

1. 15 min $=\frac{15}{60}=\frac{1}{4}$ hr.
2. Distance = $160\times \frac{1}{4}=$ 40 km.

Trick: 15 min is a quarter hour → just divide speed by 4.

Answer: (C) 40 km

Concept: If x% of a number is known, any other % is found by scaling.

1. $10\%=60$ → $100\%=600$.
2. 50% of 600 = 300.

Trick: 50% is 5 times 10% → $60\times 5=300$ in one step.

Answer: (C) 300

Concept: Split the total in the ratio of ages.

1. Shyam : Gita = 2 : 1, total parts = 3.
2. 1 part = $90÷3=30$.
3. Shyam = $2\times 30=$ 60 years.

Trick: Shyam's share = $\frac{2}{3}$ of $90=60$.

Answer: (D) 60 years

Concept: Fast-growing terms usually follow a constant multiplier.

1. $6\times 3=18,18\times 3=54,54\times 3=162$.
2. Next = $162\times 3=$ 486.

Trick: Unit digit check: $2\times 3$ ends in 6 → only 486 ends in 6.

Answer: (A) 486

Concept: $\text{Profit}\%=(\text{Profit}÷\text{CP})\times 100$.

1. Profit = $1600-1200=$ ₹400.
2. $\text{Profit}\%=\frac{400}{1200}\times 100=\frac{1}{3}\times 100=$ 33.33%.

Trick: $\frac{400}{1200}=\frac{1}{3}$ → $33\frac{1}{3}\%$. Fraction-to-% memory saves time.

Answer: (D) 33.33%

Concept: $\text{Sum}=\text{Average}\times \text{Count}$.

1. Total of 5 = $30\times 5=150$.
2. Known three = $22+26+34=82$.
3. Other two = $150-82=68$ → average = $\frac{68}{2}=$ 34.

Trick: Deviation method: 22, 26, 34 differ from 30 by $-8,-4,+4=-8$, so the other two must total +8 → each $30+4=34$.

Answer: (C) 34

Concept: $\text{New value}=\text{Original}\times \frac{100+r}{100}$.

1. 25% increase → multiply by $\frac{5}{4}$.
2. $\text{Original}\times \frac{5}{4}=750$ → $\text{Original}=750\times \frac{4}{5}=$ ₹600.

Trick: $25\%=\frac{1}{4}$ → new = 5 parts = 750 → 1 part = 150 → original (4 parts) = 600.

Answer: (B) ₹600

Concept: Equal moves in opposite directions cancel out.

1. 10 km south and 10 km north cancel.
2. Only 14 km east remains.
3. Shortest distance = 14 km.

Trick: Net N–S and net E–W first; if one is zero, the other is the answer.

Answer: (A) 14 km

Concept: $\text{Distance}=\sqrt{{\text{net E–W}}^2+{\text{net N–S}}^2}$.

1. Net east = $16-8=8$ km; net north = 15 km.
2. Distance = $\sqrt{8^2+{15}^2}=\sqrt{64+225}=\sqrt{289}=$ 17 km.

Trick: 8–15–17 is a Pythagorean triplet — no need to square.

Answer: (B) 17 km

Concept: After cancelling opposite moves, the leftover move gives the direction.

1. 9 km north and 9 km south cancel.
2. Remaining: 6 km west.
3. So he is West of the start.

Trick: Only the un-cancelled leg decides the direction.

Answer: (D) West