RRB NTPC Graduate CBT 3 (Free Practice Test 1) Series Of Solutions, Hack Tricks (Part 3: Question 51-75)
This is the part of the massive test series. Let’s take the mock test of RRB NTPC Exam 1 part 3 which contains questions from 51 to 75. We provide full preparation service with no hidden charges. We even give you rewards if you perform well to motivate you in your study. Here you will try to attempt RRB NTPC Graduate CBT 3 exam practice test 1. The competitive exam is divided into 4 parts each with 25 questions. You will be taking the third series with massive list of test questions, answer, solutions, and tricks hack.
Exam Instructions
- Total Questions: 25 (This is Part 3 of Total 100 Questions.)
- Attempt like real exam (no scrolling to answers immediately 😉)
- Each question includes:
- ✅ Correct Answer
- 🧠 Shortcut Trick
- ❌ Why other options are wrong
The Solution and Explanation of The Competitive Exam
Question 51
A ladder is placed against a wall. If the ladder makes an angle of 45° with the ground and its foot is 8 m away from the wall, what is the length of the ladder?
A. m
B. 8 m
C. 16 m
D. m
Ladder Length (Trigonometry)
Right triangle situation:
Given:
Angle = 45° is equal to
Base = 8 m
Hypotenuse = Ladder length (L)
✅ Answer: A
👉 Trick:
Quick trick: A angle with one leg known often means a 45−45−90 triangle, so the hypotenuse is leg .
The leg means base, which is 8 here: 8 .
Question 52
What is the name of the joint military exercise between India and Japan conducted in the Rajasthan desert in March 2026?
A) Dharma Guardian
B) Shinyuu Maitri
C) Veer Guardian
D) Desert Cyclone
Dharma Guardian: This 2026 edition focused on semi-urban and desert warfare tactics.
✅ Answer: A. Dharma Guardian
Question 53
What should come in place of the question mark?
180, 165, 145, 120, 90, ?
A. 55
B. 60
C. 65
D. 50
Solution
Look at the differences:
180→165 = −15
165→145 = −20
145→120 = −25
120→90 = −30
The differences increase by 5 each time, so the next difference is −35.
90 − 35 = 55
Quick trick: Track the differences, not the numbers themselves.
Correct answer: A. 55
Question 54
The 14th-century treatise Līlātilakam is associated with which literary dialect?
A. Manipravalam
B. Brahmi
C. Prakrit
D. Pali
Britannica states that the Līlātilakam, a 14th-century treatise on grammar and poetics, describes the literary dialect Manipravalam and discusses the blending of Tamilizing and Sanskritizing trends.
✅ Answer: A. Manipravalam
Question 55
Which Article of the Indian Constitution provides for a joint sitting of both Houses of Parliament in certain cases?
A. Article 107
B. Article 108
C. Article 109
D. Article 110
The Constitution text and constitutional commentary identify Article 108 as the provision for a joint sitting of both Houses of Parliament in certain cases.
✅ Answer: B. Article 108
Question 56
If 45% of , then the value of y is:
A. 15
B. 12
C. 18
D. 21
Simplification
Now for roots:
Let’s put them:
✅ Answer: A. 15
👉 Trick: Always simplify roots first.
Question 57
What should come in place of the question mark?
12, 21, 33, 48, 66, ?
A. 82
B. 84
C. 87
D. 90
Series
12, 21, 33, 48, 66, ?
Differences increase of +3:
+9, +12, +15, +18 → next +21
66 + 21 = 87
✅ Answer: C. 87
Question 58
In a certain code language:
A ÷ B means A is the daughter of B
A – B means A is the brother of B
A × B means A is the husband of B
A + B means A is the mother of B
How is H related to R if H ÷ V – K × T + R?
A. Cousin
B. Aunt
C. Niece
D. Sister
Solution
From the relations:
H÷V means H is the daughter of V
V−K means V is the brother of K
K×T means K is the husband of T
T+R means T is the mother of R
So V and K are siblings. K is R’s father, and H is V’s daughter. That means H is the cousin of R.
Quick trick: Build the family tree from right to left.
Correct answer: A. Cousin
Question 59
P, Q, R, S, Y and Z live on six different floors of the same building numbered 1 to 6 from bottom to top.
Only three people live between Y and Z.
Only P lives above Y.
Q lives immediately below Y.
R lives on an odd-numbered floor.
Who lives on floor number 2?
A. S
B. Y
C. P
D. Q
Solution
“Only three people live between Y and Z” means Y and Z are 4 floors apart.
“Only P lives above Y” means Y must be on floor 5 and P on floor 6.
“Q lives immediately below Y” means Q is on floor 4.
Since Y and Z are 4 floors apart, Z must be on floor 1.
Remaining floors are 2 and 3 for R and S.
R is on an odd floor, so R is on 3 and S is on 2.
So the person on floor 2 is S.
Quick trick: Use the “only one above” clue first; it fixes the top end immediately.
Correct answer: A. S
Question 60
Which city was declared the “UNESCO World Book Capital” for the year 2026?
A) Rio de Janeiro
B) Madrid
C) New Delhi
D) Guadalajara
Rio de Janeiro: UNESCO selected the Brazilian city for its commitment to promoting literature and literacy.
✅ Answer: A. Rio de Janeiro
Question 61
Read the statements and conclusions carefully.
Statements:
All roses are flowers.
Some flowers are fragrant.
All fragrant things are pleasant.
Conclusions:
(I) Some pleasant things are flowers.
(II) All roses are pleasant.
A. Only conclusion (I) follows
B. Only conclusion (II) follows
C. Both conclusions follow
D. Neither conclusion follows
Solution
From the statements:
All roses are flowers.
Some flowers are fragrant.
All fragrant things are pleasant.
Since some flowers are fragrant, and all fragrant things are pleasant, it follows that some pleasant things are flowers.
But we cannot say all roses are pleasant, because no statement links every rose to fragrant or pleasant.
So only conclusion (I) follows.
Quick trick: “Some” + “all” can create a valid partial overlap, but not a universal statement.
Correct answer: A. Only conclusion (I) follows
Question 62
Select the triad which follows the same pattern as the pairs given below:
FARM – FAMR – AFMR
TIME – TIEM – ITEM
A. BALD – BADL – ABDL
B. NOTE – NTOE – ONTE
C. GLOW – GOLW – OGWL
D. MINT – MNIT – NMIT
Solution
Look at the pattern:
FARM → FAMR (swap the last two letters)
FAMR → AFMR (swap the first two letters)
So the pattern is:
swap the last two letters
then swap the first two letters
Check option A:
BALD → BADL
BADL → ABDL
That follows the same pattern exactly.
Quick trick: First swap the last two, then the first two.
Correct answer: A. BALD – BADL – ABDL
Question 63
Which letter-number cluster will replace the question mark in the series?
BDF 10, EGI 13, HJL 16, KMO 19, ?
A. NPR 22
B. NPS 22
C. NQR 22
D. NPR 24
Solution
The pattern is simple:
First letters move forward by 3: B, E, H, K, N
Second letters move forward by 3: D, G, J, M, P
Third letters move forward by 3: F, I, L, O, R
Numbers also increase by 3: 10, 13, 16, 19, 22
So the next term is NPR 22.
Quick trick: Check both the letters and numbers for the same step size.
Correct answer: A. NPR 22
Question 64
Which of the following letter-number clusters should replace the question mark?
FHJ : DFL :: KMO : ?
A. MOQ
B. NOP
C. NPR
D. OMQ
Series
Letters shift +2 each time:
F → +2 → H → +2 → J
D → +2 → F → +2 → L
Similarly:
K → +2 → M → +2 → O
Check Options: Option A matches
M → +2 → O → +2 → Q
✅ Answer: A. MOQ
Question 65
What was the primary objective of the ‘Blue Skies 2025’ campaign launched in August 2025?
A. Racing for Air
B. Clean Air, Green Earth
C. Blue Planet Action
D. Air for All, Now
UNEP states that the theme of the International Day of Clean Air for blue skies 2025 was “Racing for Air”.
✅ Answer: A. Racing for Air
Question 66
Refer to the following number and symbol series and answer the question that follows.
All numbers are single-digit numbers only.
4 @ 7 ! 2 # 5 * 9 $ 1 % 8 & 3
If all symbols are dropped from the series, which number will be seventh from the right?
A. 7
B. 5
C. 9
D. 1
Series
Remove symbols:
(left) 4,7,2,5,9,1,8,3 (right)
7th from right:
Count → 7
✅ Answer: A. 7
Question 67
The “Vishwa Shanti” (World Peace) statue, inaugurated by the PM in April 2026, is located in which city?
A) Ayodhya
B) Varanasi
C) Ahmedabad
D) Kurukshetra
Kurukshetra: The statue was unveiled as a symbol of universal peace and the teachings of the Bhagavad Gita.
✅ Answer: D. Kurukshetra
Question 68
If , then what is the value of ?
A. 47
B. 45
C. 49
D. 51
You are given:
The core idea in these questions is:
👉 You cannot jump to directly
👉 You build step by step using identities
First important identity:
Now apply it:
Now next concept:
To move from power 2 → power 4, use:
👉 WHY this works:
Because multiplication combines powers:
The good news is that, we have already done power 2 and 4. We input the power result of 2 + 2 = 4.
Let’s finish:
✅ Answer: A. 47
Question 69
Which Indian state inaugurated the country’s first “Green Hydrogen Valley” in March 2026?
A) Gujarat
B) Kerala
C) Odisha
D) Rajasthan
Kerala: Located in Kochi, this valley produces green hydrogen using solar and wind power for local industrial use.
✅ Answer: B. Kerala
Question 70
In a certain code language, PAPA is coded as 2424 and SEAT is coded as 3218. What is the code for P?
A. 4
B. 5
C. 8
D. 6
Pattern
PAPA = 2424
Confusing which is 2 or 4 for P or A.
SEAT = 3218
Do you see the similarities? It is clear that the position don’t matter. So A = 2 and P = 4.
🎯 FINAL ANSWER: A. 4
Question 71
If 3 : 24 :: 3.5 : x and 5 : 40 :: 4.5 : y, what is the ratio of x to y?
A. 7:9
B. 9:7
C. 28:36
D. 36:28
Ratio
Pattern:
3 → 24 = ×8
3.5 → 3.5×8 = 28 → x
5 → 40 = ×8
4.5 → 4.5×8 = 36 → y
x:y = 28:36 = 7:9
Quick trick: Same multiplier in both gives the ratio directly.
✅ Answer: A. 7 : 9
Question 72
Eenaa and Meena start a business by investing in the ratio 5 : 8. If the total profit is ₹52,000, what is the difference between their shares of profit?
A. ₹12,000
B. ₹10,000
C. ₹14,000
D. ₹8,000
Profit Sharing
Ratio = 5:8
Difference: 8 – 5 = 3 parts
✅ Answer: A. ₹12000
Question 73
Who was appointed as the Governor of the Reserve Bank of India (RBI) in early 2026?
A) Shaktikanta Das
B) T. Rabi Sankar
C) K.V. Kamath
D) Arindam Bagchi
K.V. Kamath: The veteran banker took over the role, bringing extensive experience from the New Development Bank.
✅ Answer: C. K.V. Kamath
Question 74
AB is the diameter of a circle. C is a point on the circle such that . What is ∠ABC?
A.
B.
C.
D.
Think in terms of circle angle properties, not raw calculation.
Since AB is a diameter, any angle subtended by AB at the circle is a right angle. So:
∠ACB = 90∘
Now in triangle ABC:
∠ABC = 180∘ − 90∘ − 35∘ = 55∘
Quick trick: Angle in a semicircle is always 90∘.
✅ Answer: A. 55∘
Question 75
In a certain code language, ‘BYER’ is coded as ‘3218’ and ‘LYER’ is coded as ‘2178’. What is the code for ‘L’ in the given code language?
A. 7
B. 2
C. 1
D. 3
Pattern
BYER = 3218
LYER = 2178
Do you see the similarities? It is clear that the position don’t matter. So B = 3 and L = 7.
🎯 FINAL ANSWER: A. 7

