RRB NTPC Undergraduate CBT 1 2024 PYQs

Concept: Place the towns on a grid using the given directions.

1. A is west of B; C is south of A; D is east of C
2. E is west of A, i.e. on A’s row but to the left
3. From C: go north (to A’s level) then west ⇒ E is north-west of C

Trick: North + West components together ⇒ Northwest.

Answer: (B) Northwest

Concept: Draw the least possible Venn diagram and test each conclusion.

1. Some walls are roofs ⇒ Walls and Roofs overlap
2. No roof is a floor ⇒ Roofs and Floors are separate
3. I: “No roof is a wall” contradicts “some walls are roofs” ✗
4. II: “Some floors are roofs” contradicts “no roof is a floor” ✗

Trick: A conclusion that directly contradicts a statement can never follow.

Answer: (C) Neither conclusion (I) nor (II) follows

Concept: Convert both positions to the same end: position from left $=N-(\text{from right})+1$.

1. Monu from left $=43-12+1=32$
2. Kishor $=24$ from left
3. Between $=32-24-1=7$

Trick: Between two positions $=$ difference $-1$.

Answer: (C) $7$

Concept: Compare corresponding letters of the two clusters.

1. LP-KN: $L-1=K$, $P-2=N$; EI-DG: $-1,-2$; HL-GJ: $-1,-2$
2. BF-AC: $B-1=A$, $F-3=C$ ✗

Trick: Only BF-AC breaks the $-1,-2$ rule.

Answer: (D) BF-AC

Concept: Letters common to both words share the codes common to both codes.

1. YARN → 2, 5, #, @; ARTY → #, $, 5, 2
2. Common letters Y, A, R ↔ common codes 2, 5, #
3. Remaining: N = @ and T = $

Trick: Leftover letter ↔ leftover code.

Answer: (B) $

Concept: Look at the differences between consecutive terms.

1. Differences: $8,10,12,14$ (increase by $2$)
2. Next difference $=16$ ⇒ $76+16=92$

Trick: Second differences constant ($2$) ⇒ add the next even number.

Answer: (D) $92$

Concept: Write the new arrangement under the original and compare place by place.

1. Original: 2 7 8 6 4 3 1
2. Ascending: 1 2 3 4 6 7 8
3. No position has the same digit ⇒ none

Trick: Here every digit shifts; compare column-wise, don’t guess.

Answer: (C) None

Concept: Track coordinates (East $+x$, North $+y$); every right turn from South goes West, then North, East, South.

1. A$(0,0)$ → South $5$: $(0,-5)$ → West $9$: $(-9,-5)$
2. → North $13$: $(-9,8)$ → East $11$: $(2,8)$ → South $8$: $(2,0)=$ P
3. P is $2$ km east of A ⇒ drive $2$ km to the West

Trick: Net E–W: $11-9=2$ east; net N–S: $13-5-8=0$.

Answer: (A) $2$ km to the West

Concept: Facing north, left–right are as seen; fix the definite clues first.

1. Only P to the right of K ⇒ K $6^{\text{th}}$, P $7^{\text{th}}$
2. One person between I and K ⇒ I $4^{\text{th}}$
3. Two between J and I ⇒ J $1^{\text{st}}$ ($7^{\text{th}}$ is taken)
4. L < Q < R in seats $2,3,5$ ⇒ L $2$, Q $3$, R $5$
5. Between R and L: Q, I ⇒ $2$

Trick: Start with the “only” clue – it fixes the end seats.

Answer: (D) Two

Concept: Number the letters of the first word $1234$ and find the position pattern of each step.

1. SACK → CSAK: $3,1,2,4$; CSAK → KCAS: $4,1,3,2$ of the new word
2. LEAP → ALEP → PAEL follows the same ✓
3. GOLD → LGOD ($3,1,2,4$) → DLOG ($4,1,3,2$) ✓

Trick: Test option B: EMIT → MEIT is $2,1,3,4$ ✗ – reject at the first step.

Answer: (C) GOLD - LGOD - DLOG

Concept: Seven seats numbered $1$–$7$ from the left (all face north).

1. F $6^{\text{th}}$ from right ⇒ seat $2$; two between E and F ⇒ E seat $5$
2. A right of E, left of G ⇒ A $6$, G $7$
3. D third to the left of C, seats $1,3,4$ free ⇒ D $1$, C $4$, B $3$
4. Right of B: C, E, A, G ⇒ $4$

Trick: With $7$ seats, “$6^{\text{th}}$ from right” $=2^{\text{nd}}$ from left.

Answer: (B) Four

Concept: Number the letters $1234$ and find the rearrangement in each step.

1. SAVE → EASV: $4,2,1,3$; EASV → AVSE: $2,4,3,1$ of the new word
2. CROW → WRCO → ROCW fits ✓
3. JUST → TUJS ($4,2,1,3$) → USJT ($2,4,3,1$) ✓

Trick: Check the first step for all options: only JUST → TUJS keeps “U” in 2nd place with last letter first.

Answer: (D) JUST - TUJS - USJT

Concept: Number positions $1$ (top) to $7$ (bottom) and place definite boxes first.

1. No box below E ⇒ E at $7$; two between C and E ⇒ C at $4$
2. Only A above B ⇒ A $1$, B $2$
3. D above F above G in $3,5,6$ ⇒ D $3$, F $5$, G $6$
4. Between A ($1$) and G ($6$): B, D, C, F ⇒ $4$

Trick: “Only A above B” fixes the top two at once.

Answer: (A) $4$

Concept: The letter common to both words takes the code common to both codes.

1. MEAT → 4, 2, 5, 7; TURN → 1, 3, 6, 5
2. Common letter: T; common digit: 5 ⇒ T = 5

Trick: One common letter ↔ one common digit.

Answer: (B) $5$

Concept: Identify the largest and smallest numbers, then pick the required digits.

1. Largest $=6367$ ⇒ first digit $6$
2. Smallest $=1276$ ⇒ second digit $2$
3. $6\times 2=12$

Trick: Compare first digits only: $6$ is largest, $1$ is smallest.

Answer: (A) $12$

Concept: Swap the signs first, then apply BODMAS.

1. Swap $+\leftrightarrow \times$ and $-\leftrightarrow ÷$: $46÷2-10\times 3+24$
2. $=23-30+24=17$

Trick: Rewrite the full expression before calculating.

Answer: (B) $17$

Concept: Look at the differences between consecutive terms.

1. Differences: $55,50,45,40$ (decreasing by $5$)
2. Next difference $=35$ ⇒ $98-35=63$

Trick: Subtract multiples of $5$ going down: $55,50,45,40,35$.

Answer: (C) $63$

Concept: “All X are Y” puts circle X fully inside circle Y.

1. Grapes ⊂ Oranges ⊂ Melons
2. I: Oranges are inside Melons, so some melons are oranges ✓
3. II: Grapes inside Oranges inside Melons ⇒ all grapes are melons ✓

Trick: All + All ⇒ All (chain), and “All A are B” always gives “Some B are A”.

Answer: (A) Both conclusions (I) and (II) follow

Concept: Change only the even digits, then read positions from each end.

1. 95423671: even digits $4,2,6$ become $3,1,5$ ⇒ 95313571
2. Third from left $=3$; third from right $=5$
3. Product $=3\times 5=15$

Trick: Odd digits stay the same; only $2,4,6,8,0$ change.

Answer: (D) $15$

Concept: Convert both positions to the same end: from left $=N-(\text{from right})+1$.

1. Harman from left $=38-15+1=24$
2. Hinal $=13$ from left
3. Between $=24-13-1=10$

Trick: Between two positions $=$ difference $-1$.

Answer: (C) $10$