Q&A: practice questions with answers

Concept: Drop the vowels (A, E, I, O, U) and count positions in what remains.

1. Vowels in COMPUTER: O, U, E.
2. Consonants left in order: C – M – P – T – R.
3. 3rd from left = P.

Trick: Just skip vowels while counting: C(1), M(2), P(3) – no need to rewrite the word.

Answer: (B) P

Concept: Compare every part – number, spelling, sector, PIN – with the given address.

1. (A) writes 27 instead of 27A.
2. (C) has "Vally" instead of "Valley".
3. (D) has Sector 9 instead of Sector 8.
4. (B) matches every detail.

Trick: Check the parts most likely to be altered first – house number, spellings and digits.

Answer: (B) House No. 27A, Green Valley Road, Sector 8, Chandigarh - 160009

Concept: An inference must be a likely, reasonable result of the statement – not a new, extreme claim.

1. Costly fuel makes driving expensive, so more people may use buses/metro – I is a natural outcome.
2. A price rise says nothing about a government ban on vehicles – II adds an unrelated, extreme step.

Trick: Words like "ban", "always", "decided" in an inference usually signal it goes beyond the statement.

Answer: (A) Only I follows

Concept: Put each option's signs in place and solve by BODMAS until LHS = 50.

1. (A): $15\times 3+5=45+5=50$ ✓
2. (B): $15+3\times 5=15+15=30$ ✗
3. (C): $15-15=0$ ✗; (D): $5+5=10$ ✗

Trick: 50 is large, so 15 must be multiplied – only (A) starts with ×.

Answer: (A) ×, +

Concept: Track each letter position separately.

1. 1st letter: always B.
2. 2nd letter: I → M → Q → U → Y (+4 each).
3. 3rd letter: U → Q → M → I → E (−4 each).
4. Next term = BYE.

Trick: The 2nd and 3rd letters move in opposite directions by the same step (+4/−4) – a mirror pattern.

Answer: (A) BYE

Concept: Remainder of a number ÷ 9 = remainder of its digit sum ÷ 9.

1. The digits are 0 to 8, so their sum = $0+1+2+\dots +8=36$.
2. 36 is divisible by 9 → remainder 0.

Trick: Sum of 1 to 8 = $\frac{8\times 9}{2}=36$ – instantly a multiple of 9.

Answer: (A) 0

Concept: Swap the pair of signs given in each option, then solve by BODMAS.

1. Swap × and +: $3+4\times 6÷2-5$.
2. $4\times 6=24$; $24÷2=12$.
3. $3+12-5=10$ ✓

Trick: Start with the option that changes the multiplication – it decides the size of the result most.

Answer: (D) × and +

Concept: Both numbers in each term decrease by 111.

1. First numbers: 555, 444, 333 → 222.
2. Second numbers: 444, 333, 222 → 111.
3. Next term = 222 × 111.

Trick: The second number is always the first number minus 111 – only (B) keeps that order.

Answer: (B) 222 × 111

Concept: Find the category shared by three items.

1. Ganga, Yamuna, Godavari – all rivers (fresh, flowing water).
2. Bay of Bengal – a bay, part of the Indian Ocean (salt water).

Yaad rakhein: The Bay of Bengal is the largest bay in the world; Ganga and Godavari both drain into it.

Answer: (C) Bay of Bengal

Concept: Group by visible (external) vs internal organs.

1. Wing, beak, eye – seen on the outside of a bird.
2. Heart – an internal organ inside the body.

Trick: Ask "can I see it from outside?" – the one that fails is the odd one.

Answer: (D) Heart

Concept: Children of the same father share his wife as mother.

1. Q and R are siblings, and P is Q's father → P is the father of R too.
2. S, the wife of P, is therefore the mother of both Q and R.

Trick: Father's wife = mother (in such questions, unless "step" is mentioned).

Answer: (A) Mother

Concept: A child who is not a son must be a daughter.

1. P is Q's father → Q is P's child.
2. Q is not a son → Q is female.
3. So Q is P's daughter.

Trick: Only "Daughter" is a child-relation among the options – sister, mother, cousin are ruled out at once.

Answer: (D) Daughter

Concept: Each term is 3 times the previous one.

1. 3 → 9 → 27 (×3 each).
2. $27\times 3=81$.
3. Check: $81\times 3=243$ ✓, $243\times 3=729$ ✓

Trick: Terms are $3^1,3^2,3^3$, … so the 4th term = $3^4=81$.

Answer: (A) 81

Concept: A good leader acts fairly and solves problems at his own level first.

1. Ignoring (A) lets the conflict grow.
2. Taking sides (B) is unfair and breaks trust.
3. Complaining upward (D) avoids responsibility.
4. Hearing both sides and resolving fairly (C) is the right step.

Trick: In such questions pick the option that is fair, active and solution-oriented.

Answer: (C) Listen to both and resolve the issue fairly

Concept: Each number is coded as its cube ($n\to n^3$).

1. $2^3=8$, $3^3=27$, $4^3=64$, $5^3=125$ ✓
2. $6^3=6\times 6\times 6=216$.

Trick: Memorise cubes 1–20: $6^3=216$, $7^3=343$, $8^3=512$, $9^3=729$.

Answer: (C) 216

Concept: Fix the definite clues first, then place the rest.

1. Shyam = 3; Amit below him → Amit 1 (Jai needs floor 2 for Ram = Jai + 2).
2. Jai 2, Ram 4 (Ram not on 8).
3. Rahul even, not 6, just above Suresh → Rahul 8, Suresh 7.
4. Ramesh even, not next to Ram (4) → Ramesh 6; Nidhi 5 (not next to Jai ✓).
5. Between Rahul (8) and Jai (2): floors 3–7 → 5 persons.

Trick: Persons between floors a and b = |a − b| − 1 = 8 − 2 − 1 = 5.

Answer: (B) Five

Concept: Fix genders from relation words, then use the couples.

1. A (grandfather), F (male), G (son), C (son-in-law) → males.
2. C is D's son-in-law, and D's two children are same gender → both daughters; E (C's sister-in-law) is one, C's wife is the other.
3. G is B's son, C is a father → B is C's wife (female).
4. D is A's wife (female). Males = A, C, F, G = 4.

Trick: Son-in-law of D + "same gender children" → D's children are daughters.

Answer: (A) 4

Concept: A "some" link followed by an "all" link gives a definite "some" conclusion; a missing link gives nothing.

1. Some educated are doctors + all doctors are respected → those educated are respected. II follows.
2. Teachers are inside "educated", but may lie outside the doctors part → I is only possible, not certain.

Trick: Some + All = Some (taken from the first term). All + Some = no conclusion.

Answer: (B) Only II follows

Concept: Rearrange the letters into a word, then count position.

1. N, T, A, E, P, L, E, H → ELEPHANT.
2. ELEPHANT begins E-L…, so L sits at position 2.

Trick: Two E's + PH + ANT quickly suggests ELEPHANT.

Answer: (C) 2

Concept: Letters move forward by a fixed gap.

1. B(2), E(5), H(8), K(11) – gap +3.
2. 11 + 3 = 14 → N.

Trick: Use EJOTY: E=5, J=10, O=15, T=20, Y=25. N is just before O, so N = 14.

Answer: (B) N