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Railways Exam  >  Railways Tests  >  RRB Group D Mock Test - 4 - Railways MCQ

RRB Group D Mock Test - 4 - Railways MCQ


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30 Questions MCQ Test - RRB Group D Mock Test - 4

RRB Group D Mock Test - 4 for Railways 2024 is part of Railways preparation. The RRB Group D Mock Test - 4 questions and answers have been prepared according to the Railways exam syllabus.The RRB Group D Mock Test - 4 MCQs are made for Railways 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for RRB Group D Mock Test - 4 below.
Solutions of RRB Group D Mock Test - 4 questions in English are available as part of our course for Railways & RRB Group D Mock Test - 4 solutions in Hindi for Railways course. Download more important topics, notes, lectures and mock test series for Railways Exam by signing up for free. Attempt RRB Group D Mock Test - 4 | 100 questions in 90 minutes | Mock test for Railways preparation | Free important questions MCQ to study for Railways Exam | Download free PDF with solutions
RRB Group D Mock Test - 4 - Question 1
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A is two years older than b who is twice as old as C. If the total of the ages of A, B and C be 27, then how old is B?

Detailed Solution for RRB Group D Mock Test - 4 - Question 1
Let C's age be x years
Then, B's age = 2x years
A's age = (2x + 2) years
∴ (2x + 2) + 2x + x = 27
⇒ 5x = 25
⇒ x = 5
Hence B's age = 2x = 10 years
RRB Group D Mock Test - 4 - Question 2
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Which one of the following pairs of equations has a unique solution?

Detailed Solution for RRB Group D Mock Test - 4 - Question 2

Given two equations

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RRB Group D Mock Test - 4 - Question 3
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One side of a right triangle measures 12 cm and the difference between the hypotenuse and the other side is 8 cm. The area of the triangle is

Detailed Solution for RRB Group D Mock Test - 4 - Question 3

Let the hypotenuse = x cm
Then the other side is (x - 8) cm
By Pythagoras theorem
(x - 8)2 + (12)2 = x2
⇒ x2 + 64 - 16x + 144 = x2
⇒ -16x = -208
⇒ x = 208/16 = 13 cm
∴ Hypotenuse = 13cm
so the other side = (13 - 8) = 5cm
Area = 1/2 x 12 x 5
= 30cm2

RRB Group D Mock Test - 4 - Question 4
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The average weight of three men A,B and C is 84 kg. D joins them and the average weight of the four becomes 80 kg. If E, whose weight is 3 kg more than that of D,replaces A,the average weight of B,C,D and E becomes 79 kg. The weight of A is
RRB Group D Mock Test - 4 - Question 5
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A motor boat whose speed is 15 km/hr in still water goes 30 km downstream and comes back in 4 hrs and and 30 minutes. Determine the speed of the stream.
Detailed Solution for RRB Group D Mock Test - 4 - Question 5

Let x km/hr be the speed of water
The speed of motor boat in still water is 15 km/hr, therefore, its speed downstream is (15 + x) km/hr and the speed upstream is (15 - x) km/hr
Time taken for given 30 km downstream = 30/15 + x hours
Time taken for going 30 km upstream = 30/15 - x hours
Since the total time is given to be 4 hours 30 minutes


or 1800 = 9(225 - x2)
or 200 - 225 + x2 = 0
or x2 = 25
⇒ x = 5, - 5
∴ x = 5 [as x cannot be negative so x = -5 is rejected]
Hence the speed of water = 5 km/hr

RRB Group D Mock Test - 4 - Question 6
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A is the father of C. But C is not his son.
E is the daughter of C. F is the spouse of A.
B is the brother of C. D is the son of B.
G is the spouse of B. H is the father of G.
Who is the Grand mother of D?
RRB Group D Mock Test - 4 - Question 7
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Who wrote 'Vaishnav Jan te.....'?
RRB Group D Mock Test - 4 - Question 8
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Which one of the following statements is correct on the basis of Census-2001 ?
RRB Group D Mock Test - 4 - Question 9
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Choose the analogous pair.
Pedant : Erudition
RRB Group D Mock Test - 4 - Question 10
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Choose the numeral pair which is different from others .
Detailed Solution for RRB Group D Mock Test - 4 - Question 10
This is the only pair in which the second number is twice the first one
RRB Group D Mock Test - 4 - Question 11
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If 'nitco sco tingo' stands for 'softer than flower'; 'tingo rho mst' stands for 'sweet flower fragrance' and 'mst sco tmp' stands for 'sweet than smile', what would 'fragrance' stand for ?
RRB Group D Mock Test - 4 - Question 12
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Complete the analogous pair.
Calf : Cow : : Puppy : ?
RRB Group D Mock Test - 4 - Question 13
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The compound interest on Rs 10000 in 2 years at 4% per annum, the interest being compounded half-yearly, is
Detailed Solution for RRB Group D Mock Test - 4 - Question 13

P = 10,000
T = 2 years
R = 4% (compounded half yearly)
⇒ R% = 2 + 2 + 4/100 = 4 + 0.04
⇒ R% = 4.04%
⇒ CI = P[1 + R/100 ]T - P
⇒ CI = 10000 [1 + 4.04/100 ]2 - 10000
⇒ CI = (104.04)2 - 10000
⇒ CI = 10824.3216 - 10000
⇒ CI = Rs 824.3216

RRB Group D Mock Test - 4 - Question 14
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The main cause of the punic wars was :
RRB Group D Mock Test - 4 - Question 15
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How many rectangles are there in the figure below?
Detailed Solution for RRB Group D Mock Test - 4 - Question 15

The figure in question has been labeled as under:


It is clear from the diagram above that there are eight rectangles namely
AEFM, EGHF, AGHM, GBLK, KLCN, GBCN, MHND, ABCD

RRB Group D Mock Test - 4 - Question 16
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What is China's currency called?
RRB Group D Mock Test - 4 - Question 17
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Who is the author of the book 'A Foreign Policy of India'?
RRB Group D Mock Test - 4 - Question 18
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The Nehru-Liaquat Pact between India and Pakistan was signed in 1950 to resolve the issue of:
RRB Group D Mock Test - 4 - Question 19
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Soni travelled 9 km to the west, then turned right and travelled 7 km, then turned left and travelled 8 km, then turned back and travelled 11km, then turned right and travelled 7 km. How far is he from the starting point?
RRB Group D Mock Test - 4 - Question 20
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Four positions of a dice are shown below. What number must be at the bottom face when the dice is in the position as shown in fig. (III)?
Detailed Solution for RRB Group D Mock Test - 4 - Question 20
From figure (I), (II), (IV) we conclude that 5, 6, 1 and 2 lie adjacent to 4.
Hence, 3 must lie opposite 4 and vice-versa. In fig. (III), 3 is at the top and consequently 4 must lie at the bottom face.
RRB Group D Mock Test - 4 - Question 21
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According to the latest statistics of the government, what percent of growth rate has been registered by the banking sector in December 2017 post Centre’s PSB recapitalisation plan?
RRB Group D Mock Test - 4 - Question 22
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Who was appointed as the Managing Director (MD) and CEO of National Payments Corporation of India (NPCI)?
Detailed Solution for RRB Group D Mock Test - 4 - Question 22

The Managing Director (MD) and CEO of the National Payments Corporation of India (NPCI) is Dilip Asbe. He has played a significant role in leading the organization's efforts to improve India's digital payment infrastructure, including the development of the Unified Payments Interface (UPI) and other innovative payment systems

RRB Group D Mock Test - 4 - Question 23
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Who is known as Indian Bismarck?
RRB Group D Mock Test - 4 - Question 24
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'Kanchipuram' is in which of the following states?
RRB Group D Mock Test - 4 - Question 25
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What are the two main parts of the computers required to be present essentially?
RRB Group D Mock Test - 4 - Question 26
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Which of the following is a national net work
RRB Group D Mock Test - 4 - Question 27
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GDP at factor cost is-
RRB Group D Mock Test - 4 - Question 28
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National Income is the :
RRB Group D Mock Test - 4 - Question 29
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The minor form of condensation near the surface that forms a mass is :
RRB Group D Mock Test - 4 - Question 30
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Indicate the wrong combination :
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