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# RRB Group D Mock Test - 3

## 100 Questions MCQ Test RRB (Group D) - Mock Tests & Previous Year Papers | RRB Group D Mock Test - 3

Description
This mock test of RRB Group D Mock Test - 3 for Railways helps you for every Railways entrance exam. This contains 100 Multiple Choice Questions for Railways RRB Group D Mock Test - 3 (mcq) to study with solutions a complete question bank. The solved questions answers in this RRB Group D Mock Test - 3 quiz give you a good mix of easy questions and tough questions. Railways students definitely take this RRB Group D Mock Test - 3 exercise for a better result in the exam. You can find other RRB Group D Mock Test - 3 extra questions, long questions & short questions for Railways on EduRev as well by searching above.
QUESTION: 1

### The average age of a man and his son is 33 years. The ratio of their ages is 8 : 3 respectively. What is the man's age?

Solution:

Total age of the father and the son
= 2 x 33
= 66 years
Ratio in Father's age and son's age
= 8 : 3
∴ Father's age = 8 x 66/8 + 3
= 48 years

QUESTION: 2

### If x + y = 6 and 3x - y = 4, then x - y is equal to

Solution:

x + y = 6
⇒ y = 6 - x
Now, 3x - y = 4
or 3x - (6 - x) = 4
or 3x - 6 + x = 4
or 4x = 10
or x = 5/2
∴ y = 6 - 5/2 = 7/2
∴ x - y = 5/2 - 7/2 = -1

QUESTION: 3

### Second most populous country in the world?

Solution:
QUESTION: 4

The area of the circumcircle of the equilateral triangle whose one side lies on the diagonal of a square with side 4 cm is (use π = 3.14)

Solution:
QUESTION: 5

Total expenses of a boarding house are partly fixed and partly varying linearly with the number of boarders. The average expenses per boarder is Rs. 700 when there are 25 boarders and Rs. 600 when there are 50 boarders. What is the average expense per boarder when there are 100 boarders?

Solution:

Let x be the fixed cost and y the variable cost
17500 = x + 25y .....(i)
30000 = x + 50y .....(ii)
Solving the equation (i) and (ii), we get
X = 5000, y = 50
Now if the average expense of 100 boarders be 'A'
Then 100 x A = 5000 + 500 x 100 ⇒ A = 550

QUESTION: 6
Pointing to Meena, Swarup says "she is the daughter of my grandfather's only child". How is Meena related to Swarup?
Solution: Swarup's grandfather's only child means mother or father of Swarup.
Meena is daughter swarup's mother or father.
Therefore, Meena is sister of Swarup.
QUESTION: 7
A boat takes 9 hr to travel a distance upstream and takes 3 hr to travel the same distance downstream. If speed of the boat in still water is 4 km/hr, what is the velocity of the stream?
Solution:
QUESTION: 8
'India of our dreams' is a book written by
Solution:
QUESTION: 9
Choose the analogous pair.
Throw : Ball
Solution:
QUESTION: 10
Complete the analogous pair.
Touch : Feel : : Greet : ?
Solution:
QUESTION: 11
Choose the numeral pair which is different from others .
Solution:
QUESTION: 12
If CABLE = 96372 and RISK - 8415, what word is made by 37265 ?
Solution:
QUESTION: 13

In what time will Rs. 500 give Rs. 50 as interest at the rate of 5% per annum simple interest?

Solution:

SI = 50
P = 500
R = 5% pa.
SI = P x R x T/100
⇒ 50 = 50 x 5 x T/100
⇒ T = 2 years

QUESTION: 14
Among six members P, Q, R, G, S and M sitting along a circle facing centre.
(1) R is between G and P
(2) M is between P and S
What is the position of Q?
Solution: In the question sitting directions are not given.
So positions of six members are either ,

So answer is :- cannot be determined.
QUESTION: 15
Find the minimum number of straight lines required to make the given figure.
Solution:
QUESTION: 16
Which of the following is a warm ocean current?
Solution:
QUESTION: 17
Three positions of a dice are shown below. When number 'one is the top, what no. will be at the bottom?

Solution:
QUESTION: 18
Which is the Currency of Liberia?
Solution:
QUESTION: 19
Which one of the following political theories advocates the withering away of the State?
Solution:
QUESTION: 20
Which one of the following is true about a Presidential form of Government?
Solution:
QUESTION: 21
Point B is 3 metres North of point A. Point C is 3 metres West of point B. point D is 5 metres South of point C. Point E is 7 metres East of point D. In which of the following directions is point E, with reference to point B ?
Solution:
QUESTION: 22
How much loan amount has been sanctioned by NABARD to Odisha under the Rural Infrastructure Development Fund (RIDF) for irrigation and rural bridge projects of the states?
Solution:
QUESTION: 23
According to the Central Statistics Office’s (CSO’s) latest estimate for India’s GDP growth rate, Indian economy is expected to grow at slower ____ percent in 2017-18 compared to the 7.1 per cent in 2016-17
Solution:
QUESTION: 24
Who was known as the Iron Man of India?
Solution:
QUESTION: 25
National Archives is located at?
Solution:
QUESTION: 26
Communication between the operating system and a peripheral device such as a CD-ROM drive or a printer is facilitated by a(n):
Solution:
QUESTION: 27
LAN means
Solution:
QUESTION: 28
Disinvestment is-
Solution:
QUESTION: 29
When prices are rising, which of the following steps should the Government adopt to bring about reduction in prices?
Solution:
QUESTION: 30
Indian national congress was formed in?
Solution:
QUESTION: 31
Which one of the following group of the States has correct descending order according to the literacy rate in India ?
Solution:
QUESTION: 32
Lord Buddha preached his first sermon at:
Solution:
QUESTION: 33
Ibn Batutah visited during the reign of
Solution:
QUESTION: 34
Red root of sugarcane is caused by
Solution:
QUESTION: 35
The circulation of ocean water occurs
Solution:
QUESTION: 36
Consider the following statements regarding the waves associated with a moving electron (Matter waves) :
1. Matter waves can move with a velocity greater than that of light.
2. They can exhibit the phenomenon of interference.
3. They represent the probability of finding the electrons at different points in space.
4. They are elastic waves.
Which of these statements are correct?
Solution:
QUESTION: 37
Nine Degree Channel separates
Solution:
QUESTION: 38
Assertion A : The temperature of a metal wire rises when an electric current is passed through it.
Reason R : Collision of metal atoms with each other releases heat energy.
Solution:
QUESTION: 39
Living organisms require at least 27 elements of which 15 are metals. Among these, those required in major quantities include
Solution:
QUESTION: 40
Hybridoma technology is a new biotechnological approach for commercial production of
Solution:
QUESTION: 41
Consider the following statements regarding a motor car battery:
1. The voltage is usually 12 V.
2. Electrolyte used is hydrochloric acid.
3. Electrodes are lead and copper.
4. Capacity is expressed in ampere-hour.
Which of the above statements are correct?
Solution:
QUESTION: 42
Which one of the following has the highest fuel value?
Solution:
QUESTION: 43
Which one of the following elements is alloyed with iron to produce steel which can resist high temperatures and also have high hardness and abrasion resistance?
Solution:
QUESTION: 44
"The final Agent Orange raid in Vietnam took place in 1970 areas have begun to bloom again. But 19 years after the war's end, it seems plain that Agent Orange is killing and maiming human beings, something it never intended to do. The apparent toxic fallout from those clouds is a crop of human miseries including cancers, miscarriages and birth defects - that may persist for decades."
The offensive substance referred to in this quotationis
Solution:
QUESTION: 45
Which one of the following is monogamous?
Solution:
QUESTION: 46
According to a South China Morning Post (SCMP) report, China is planning to build its second foreign naval base in which country?
Solution:
QUESTION: 47
Find the missing character.
Solution:
QUESTION: 48
The UNESCO has recently included the “bird language”, prevalent in which country, in its list of Intangible Cultural Heritage citing it as an endangered part of world heritage?
Solution:
QUESTION: 49
Alexander Fleming discovered
Solution:
QUESTION: 50
In which of the given options, there is one letter leaving two letters of the alphabet in order after the letter placed at odd numbered places and leaving one letter of the alphabet in order after the letters positioned at even numbered letters.
Solution:
QUESTION: 51
Arrange the words given below in a meaningful sequence.
1. Police 2. Punishment 3. Crime 4. Justice 5. Judgement
Solution:
QUESTION: 52
What will come in place of the question mark (?) in the following series of English alphabet?
AE CG EI GK?
Solution:
QUESTION: 53

select the correct combination of mathematical signs to replace * sign to balance the given equation.
1*111*111*12321

Solution:

1 × 111 × 111 = 111 × 111 = 12321

QUESTION: 54
Rajive , a rice merchant , sells different varieties of rice . He mixes one varity of rice costing Rs.16 per kg with another varity of rice costing Rs.21 per kg. In what ratio should these two verities of rice be mixed such that the resultant mixture, upon selling at Rs. 21.45 per kg , will gives a 10% profit?
Solution:
QUESTION: 55
Which State’s Chief Minister had directed the state irrigation department to implement the integrated solar-based micro irrigation scheme in all its districts?
Solution:
QUESTION: 56
In an effort to empower persons with disabilities, the government of India has launched _______ accessible websites for Divyangs on January 19, 2017
Solution:
QUESTION: 57
Complete the analogous pair.
64 : 8 :: 16 : 4 :: ? : 2
Solution:
QUESTION: 58
In the following question number-series is given in which one term is wrong. Find out the wrong term.
5, 12, 19, 33, 47, 75, 104.
Solution: 5, 12, 19, 33, 47, 75, 104
The sequence is:
12 - 5 = 7, 19 - 12 = 7, 33 - 19 = 14, 47 - 33 = 14, 75 - 47 = 28 , 104 - 75 = 29
Hence, 104 does not fit in this series
QUESTION: 59
The square of a positive integer added to its fourth part is equal to 147. The number is
Solution:
QUESTION: 60
Three friends X,Y and Z started a partnership business investing money in the ratio of 5 : 4 : 2, respectively for a period of 3 years. What is the amount received by X as the share in the total profit? (I) Total amount invested in the business is Rs. 22000 (II) profit was distributed after a period of 2 years (III) the average amount of profit earned per year is Rs. 2750
Solution:
QUESTION: 61
Due to the increase in the price of edible oil in the market by 25% the consumption of this oil in a certain family is decreased by 12%. The expenditure of the family on edible oil is increased by
Solution:
QUESTION: 62
NK Trikha who passed away recently was a veteran ___________
Solution:
QUESTION: 63
Who among the following has recently been appointed as a Government interlocutor to hold talks with the United Liberation Front of Assam (ULFA)?
Solution:
QUESTION: 64

One pipe can fill a tank 3 times as fast as another pipe. If the 2 pipes together can fill the tank in 36 minutes, the slower pipe alone will be able to fill the tank in

Solution:

Let the slower pipe alone fill the tank in x minutes
Then, faster pipe will fill in x/3 minutes
∴ 1/x + 3/x = 1/36
⇒ 4/x = 1/36
⇒ x = 144 min

QUESTION: 65

The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is :

Solution:

Speed = (45 x 5/18 )m/sec = ( 25/2 )m/sed
Time = 30 sec
Let the length of bridge be x metres
Then, 130 + x/30 = 25/2
⇒ 2(130 + x) = 750
⇒ x = 245m

QUESTION: 66
Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line.
Solution:
QUESTION: 67

By selling an article at 2/5 of the marked price, there is a loss of 25%. The ratio of the marked price and the cost price of the article is:

Solution:

QUESTION: 68
In a row of trees, one tree is fifth from either end of the row. How many trees are there in the row?
Solution: Rank from left end + Rank from right end - common Rank
⇒ 5 + 5 - 1 = 9
QUESTION: 69
Two numbers are in the ratio of 5:9 with the addition of 9 in each,their ratio becomes 16:27. Then one of the two numbers would be
Solution:
QUESTION: 70
Who was the tenth and last Guru of Sikhs?
Solution:
QUESTION: 71
Which country’s Navy successfully conducted a test fire of a naval cruise missile named ‘Harba’?
Solution:
QUESTION: 72
Copper wries are generally used for electrical power transmission instead of iron wires because
Solution:
QUESTION: 73
If a magnet is broken into two pieces, then
Solution:
QUESTION: 74
Which of the following is a physical change?
Solution:
QUESTION: 75
The main endocrine gland present in the human body is :
Solution:
QUESTION: 76
Which of the following groups contains only natural fuels ?
Solution:
QUESTION: 77
Two objects losing the same weight when immersed in water must have the same
Solution:
QUESTION: 78
Which of the following is a conventional source of energy ?
Solution:
QUESTION: 79
An automobile financier claims to be lending money at simple interest, but he includes the interest every six months for calculating the principal. If he is charging an interest of 10%, the effective rate of interest becomes:
Solution:
QUESTION: 80

999 x 99 x 9 = ?

Solution:
QUESTION: 81

7 is added to a certain number; the sum is multiplied by 5; the product is divided by 9 and 3 is subtracted from the quotient. the remainder left is 12. The number is :

Solution:

Let the number be x Then
5(x + 7)/9 - 3 = 12
⇒ 5(x + 7) - 27 = 108
⇒ 5x + 35 = 135
⇒ 5x = 100
⇒ x = 20

QUESTION: 82
OTIS is brand name of—
Solution:
QUESTION: 83
What is the rank of Indian Football Team in the latest Federation Internationale de Football Association (FIFA) rankings released on January 18, 2018
Solution:
QUESTION: 84
Name the player to clinch the gold medal in 48 kg category at the National Women’s Boxing Championships held in Rohtak, Haryana
Solution:
QUESTION: 85
Two trains start from P and Q respectively and travel towards each other at a speed of 50 km/hr and 40 km/hr respectively. By the time they meet, the first train has travelled 100 km more than the second. The distance between P and Q is :
Solution:
QUESTION: 86
Below are the statements followed by two conclusions numbered I and II. You have to consider the statements and the following conclusions and decide which of the conclusion(s) follows the statement(s).
Statements :
a. All books are ledgers.
b. All pens are keys.
Conclusions :
I. Some ledgers are keys.
II. Some keys are books.
Solution:
Neither of the two conclusions follow
QUESTION: 87
Three workers working all days, can do a work in 10 days, but one of them having other employment can work only half time. In how many days the work can be finished?
Solution:
QUESTION: 88

If cos (θ-α)=a and sin (θ-β)=b, then cos2(α-β)+2 ab sin (α-β) is equal to

Solution:
QUESTION: 89
The radii of two cones are in the ratio 2:1, their volumes are equal. Find the ratio of their heights.
Solution:
QUESTION: 90
Choose one word which can be formed from the letters of the given word.
MEASUREMENT
Solution:
QUESTION: 91
What is the main objective of the UN Economic and Social Commission for Asia and Pacific (ESCAP) at present?
Solution:
QUESTION: 92

Each of the following questions consists of two sets of figures. Figures 1,2,3 and 4 constitute the Problem Set while figures A,B,C,D and E constitute the Answer Set. There is a definite relationship between figures 1 and 2. Establish a similar relationship between figures 3 and 4 by selecting a suitable figure from the Answer Set .

Solution:

The central element is enlarged and the number of sides in this elements increases by one. The upper element rotates 90° CW and is placed on the RHS inside the enlarged element. The lower element rotates 90° ACW and is placed on the LHS inside the enlarged element.

QUESTION: 93

In the following problems, out of the five figures marked (1), (2), (3), (4) and (5), four are similar in a certain manner. However one figure is not like the other four. Choose the figure which is different from the rest.

Solution:
QUESTION: 94

In the following questions, select a figure from amongst the four alternatives, which when placed in the blank space of fig. (X) would complete the pattern.

Solution:
QUESTION: 95

Consider three circular parks of equal size with centers at A1, A2, and A3 respectively. The parks touch each other at the edge as shown in the figure (not drawn to scale). There are three paths formed by the triangles A1A2A3, B1B2B3 and C1C2C3 as shown. Three sprinters A, B and C begin running from points A1, B1 and C1respectively. Each sprinter traverses her respective triangular path clockwise and returns to her starting point.

Q. Let the radius of each circular park be r, and the distances to be traversed by the sprinters A, B and C be a, b and c, respectively. Which of the following is true?

Solution:

⇒ Distance travelled by A = a = 3 × 2r = 6r.
ΔA1B1D is a 30°, 60°, 90° triangle.
So, B1D = √3r/2
⇒ B1B2 = 2r + 2 × √3r/2 = r (2 + √33)
⇒ Distance travelled by B
= b = 3 × r (2 + √3) = 3r (2 + √3)
ΔA1C1E is a 30°, 60°, 90° triangle.
So, C1E = √33r.
⇒ C1C2 = 2√3 r + 2 r = 2r (1 + √3)
⇒ Distance travelled by C = c = 3 × 2r (1 + √3) = 6r (1 + √3)
Now, b - a = 3√33r and c - b = 3√3r.

QUESTION: 96

With the help of the given diagram, answer the following questions making the right choice from the given alternatives. Indicate the answer as per the "Instructions"

Q. Qualified and experienced doctors working in villages are represented by the letter .....

Solution:
QUESTION: 97

In each of the questions below are three statements followed by three conclusions numbered I, II and III. You have to consider the statements and the following conclusions and decide which of the conclusions is logically follows from the given statements.

Q.

Statements:
a. All pins are rods.
b. Some rods are chains.
c. All chains are hammers.
Conclusions:
I. Some pins are hammers.
II. Some hammers are rods.
III. No pin is hammer.

Solution:
QUESTION: 98

Use the following table to answer the following questions.

Q. How fast was the train moving 2 1/2 hours after the timed period?

Solution:
QUESTION: 99

Use the following table to answer the following questions.

Q. During the 3 hours shown in the table, the speed of the train increased by :

Solution:
QUESTION: 100

Use the following table to answer the following questions.

Q. At time t, measured in minutes, after the beginning of the time period which of the following gives the speed of the train in accordance with the table?

Solution: