All Courses
Get the App Signup / Login
Sign in Open App
Computer Science Engineering (CSE) Exam  >  Computer Science Engineering (CSE) Tests  >  RRB JE Mock Test Series for Computer Science Engineering 2025  >  RRB JE IT (CBT I) Mock Test- 4 - Computer Science Engineering (CSE) MCQ

RRB JE IT (CBT I) Mock Test- 4 - Computer Science Engineering (CSE) MCQ


Test Description

30 Questions MCQ Test RRB JE Mock Test Series for Computer Science Engineering 2025 - RRB JE IT (CBT I) Mock Test- 4

RRB JE IT (CBT I) Mock Test- 4 for Computer Science Engineering (CSE) 2024 is part of RRB JE Mock Test Series for Computer Science Engineering 2025 preparation. The RRB JE IT (CBT I) Mock Test- 4 questions and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus.The RRB JE IT (CBT I) Mock Test- 4 MCQs are made for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for RRB JE IT (CBT I) Mock Test- 4 below.
Solutions of RRB JE IT (CBT I) Mock Test- 4 questions in English are available as part of our RRB JE Mock Test Series for Computer Science Engineering 2025 for Computer Science Engineering (CSE) & RRB JE IT (CBT I) Mock Test- 4 solutions in Hindi for RRB JE Mock Test Series for Computer Science Engineering 2025 course. Download more important topics, notes, lectures and mock test series for Computer Science Engineering (CSE) Exam by signing up for free. Attempt RRB JE IT (CBT I) Mock Test- 4 | 100 questions in 90 minutes | Mock test for Computer Science Engineering (CSE) preparation | Free important questions MCQ to study RRB JE Mock Test Series for Computer Science Engineering 2025 for Computer Science Engineering (CSE) Exam | Download free PDF with solutions
RRB JE IT (CBT I) Mock Test- 4 - Question 1
Save

Walking at 6/7th of his usual speed, a man is 12 minutes late. The usual time taken by him to cover that distance is-

Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 1

S1: S2 = 6 : 7

1 T :T 2 = 7 : 6 (S ⍺ 1 / T)

Difference between

T1 & T2 = 1 (7 - 6 = 1)

If 1 = 12min.

then 6 = 72 min. = 1 hrs 12min.

RRB JE IT (CBT I) Mock Test- 4 - Question 2
Save

In selling an article for ₹ 76, there is a profit of 52%, if it is sold for ₹ 75, then the profit percent will be.

Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 2

152% = 76

100% = Cost price = 76 / 152 x 100

C.P = Rs. 50

New selling price = 75

% profit = 75 - 50 / 50 x 100%

= 25 / 50 x 100% = 50%

1 Crore+ students have signed up on EduRev. Have you? Download the App
RRB JE IT (CBT I) Mock Test- 4 - Question 3
Save

The lines x + 3y = 4 and 3x – y = 6 intersect the y – axis at A and B respectively. AB = ?

Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 3

RRB JE IT (CBT I) Mock Test- 4 - Question 4
Save

Read the following bar graph which represents a company's manufacturing and selling(in lakh) of product from 2002 to 2008 and answer the following questions.

Approximately what is the average number of items sold for all the years together?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 4
Average = (60+55+65+50+60+80+75)/7 = 445/7 = lakh

≃ 63 lakh(Appx.)

RRB JE IT (CBT I) Mock Test- 4 - Question 5
Save

Area of a circle is equal to the area of a rectangle having a perimeter of 100 cm and length is more than the breadth by 6 cm. What is the diameter of the circle?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 5

Let breadth = x, then length

= (x + 6)

2(x + x + 6) = 100

2x + 6 = 50

x = 22 cm

Breadth = x = 22 cm & length

= 22 + 6 = 28 cm

Area of circle = Area of rectangle ir

⇒ r2 = 22 x 28

⇒ r2 = 22 x 28 / 22 x 7 = 7 x 4 x 7

⇒ 7 x 2 = 14 cm

So, Diameter = 2r = 28 cm

RRB JE IT (CBT I) Mock Test- 4 - Question 6
Save

Seema purchased an item for Rs.9,600 and sold it for a loss of 5 percent. From that money, she purchased another item and sold it for a gain of 5 percent. What is her overall gain/ loss?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 6

SP = 9600 x 95 / 100 = Rs. 9,120

Second S.P. = 9120 x 105 / 100 = Rs. 9,576

Loss = 9600 - 9576 = 24

RRB JE IT (CBT I) Mock Test- 4 - Question 7
Save

A mixture of 40 litres of milk and water contains 10% water. How much water must be added to make water 20% in the new mixture?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 7

Milk =90/100 × 40 = 36 litres

water = 5 litres

5x + 20 = 40 + x

X = 5

RRB JE IT (CBT I) Mock Test- 4 - Question 8
Save

The average weight of 8 persons increases by 2.5 kg when one person whose weight is 65 kg is replaced by a new person. What Is the weight of the new person?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 8
Total increase in weight due to addition of new persons = 2.5 × 8 = 20 kg

Weight of new person = 65 + 20 = 85 kg

RRB JE IT (CBT I) Mock Test- 4 - Question 9
Save

Read the following bar graph which represents a company's manufacturing and selling(in lakh) of product from 2002 to 2008 and answer the following questions.

During which year the percentage of items unsold was the highest?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 9

% in 2002 = {(10 x 100) / 70}% = 14.3%;

% in 2003 = {(10 x 100) / 65}% = 15.38%;

% in 2004 = {(15 x 100) / 80}% = 18.75%;

% in 2005 = {(10 x 100) / 60}% = 16.67%;

% in 2006 = {(15 x 100) / 75}% = 20%;

% in 2007 = {(10 x 100) / 90}% = 11.11%;

and % in 2008 = {(5 x 100) / 70}% = 6.25%;

It was the highest in 2006.

RRB JE IT (CBT I) Mock Test- 4 - Question 10
Save

Read the following bar graph which represents a company's manufacturing and selling(in lakh) of product from 2002 to 2008 and answer the following questions.

Approximately what is the average number of items unsold for all the years together?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 10

Average = (10+10+15+10+15+10+5)/7 = 75/7 lakh

≈ 1,07,000 lakh(Aprx)

RRB JE IT (CBT I) Mock Test- 4 - Question 11
Save

A, B and C can finish a work in 8 days, 10 days and 12 days respectively. They worked together and get Rs. 740. How much will each of them will get?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 11

Given,

1 day work of A, B & C is 1 / 8, 1 / 10, 1 / 12 respectively

therefore , Their shares in money = 1/8 : 1/10 : 1/12 = 15 :12 : 10

Sum of their share = ₹740 x 15/37 = ₹300

B’s share = ₹740 x 12/37 = ₹240

C’s share = ₹740 x 10/37 = ₹200

RRB JE IT (CBT I) Mock Test- 4 - Question 12
Save

A room 8 m long, 6 m broad and 3 m height has two windows 1 1⁄2 m × 1 m and a door 2 m × 1 1⁄2 m. Find the cost of papering the walls with paper 50 cm wide at 25 paise per meter.
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 12

Area of walls = 2(Length + Breadth) x height

= 2(8 + 6) x 3 = 84m2

Area of two windows and a door = (1 ½ x 1) + 2 x 1 ½ ) = 6m2

Area to be covered = 84 - 6

= 78m2

Area of paper = Area to be covered = 78

⇒ (length x breadth) of paper is 78

⇒ length of paper = 78/50 x 100m

= 156 m

So, Cost = 156x25 / 100 = Rs.39

RRB JE IT (CBT I) Mock Test- 4 - Question 13
Save

Two circles with radii R and r touch each other externally. A direct common tangent with length l is drawn to the circles. Which is true?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 13

Length of direct common tangent l2 = d2 – (R – r)2

Here, d = R + r

Therefore, l2 = (R + r)2 – (R – r)2 = 4Rr

= 2√Rr

RRB JE IT (CBT I) Mock Test- 4 - Question 14
Save

A certain sum, invested at 4% per annum at compound interest, compounded half-yearly, amounts to Rs. 7,803 at the end of one year. Find the sum.
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 14

If interest is compounded half-yearly rate will be 2 %

C.I. for 2 years = 4.04%

Principal = 7803 / 104.04 x 100

= Rs.7500

RRB JE IT (CBT I) Mock Test- 4 - Question 15
Save

Read the following bar graph which represents a company's manufacturing and selling(in lakh) of product from 2002 to 2008 and answer the following questions.

The number of items manufactured in 2007 is what percent of the total number of items manufactured in all the years together? (Rounded off to two digits after decimal)?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 15

Reqd. % = {(90 x 100) / 520}% = 17.307% = 17.31 % (Appx.)

RRB JE IT (CBT I) Mock Test- 4 - Question 16
Save

Find the measures of an angle that is the complement of 50°.
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 16

Let the measure of angle = x°

measure of its complement = 50°

∴ x° + 50°= 90° ⇒ x° = 40°

RRB JE IT (CBT I) Mock Test- 4 - Question 17
Save

If sin (10° 6’ 32" ) = a, then the value of cos (79° 53’ 28”) + tan (10° 6’ 32”) is:
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 17

cos 79o 53’ 25” + tan 10o 6’ 32”

= sin 10o 6’ 32” + sin 10o 6’ 32” / cos 10o 6’ 32”

RRB JE IT (CBT I) Mock Test- 4 - Question 18
Save

If cos T = 3/5 and if sin R = 8/17, where T is in the fourth quadrant and R is in the second quadrant, then cos (T-R) is equal to:
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 18

We have

cos T = 3/5

sin T =

=

= √16/25 = -⅘ (Since T is in IV quadrant)

sin R = 8 /17

cos R =

=

√225 / 289 = -15/17 (Since r is in II quadrant)

Now, cos (T-R) = cos T cos R + sin T sinR

=

=

= 77/85

RRB JE IT (CBT I) Mock Test- 4 - Question 19
Save

There are 13 white and 7 black balls in a bag. Two balls are drawn at random. What is the probability that they are of the same colour?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 19
Probability that both balls are of the same colour =

RRB JE IT (CBT I) Mock Test- 4 - Question 20
Save

The ratio between the angles of a quadrilateral is 3:4:6:7. Half of the smallest angle of a quadrilateral is the angle of a cyclic quadrilateral. Find another angle of the cyclic quadrilateral?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 20

Let smallest angle is 3x

So,

3x + 4x + 6x + 7x = 360°

Smallest angle = 54°

According to given condition one angle of Cyclic quadrilateral = 27°

Another = 180 – 27 = 153°

RRB JE IT (CBT I) Mock Test- 4 - Question 21
Save

A, B and C divide an amount of Rs. 9,915 amongst themselves in the ratio 3:5:7 respectively. What is the C’s share in the amount?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 21

A : B : C

3 : 5 : 7

Sum of their ratio = 3 + 5 + 7

= 15 units

Share of C = 7/15 × 9915 = 4,627

RRB JE IT (CBT I) Mock Test- 4 - Question 22
Save

60 boys working 7 hours a day can do work in 18 days. In how many days will 28 boys working 9 hours a day do the same work?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 22

Using the formula M1D1H1W2 = M2D2H2W1

Since work is same for the two cases

M1D1H1 = M2D2H2

⇒ D2 = M1D1H1 / M2H2 = 60 x 7 x 18 / 28 x 9

= 30 days

RRB JE IT (CBT I) Mock Test- 4 - Question 23
Save

What should come in place of the question mark (?)?

(833.25 – 384.45) ÷ 24 = ?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 23

(d) ?= (833.25–384.45)/24 = 448.8/24 = 18.7

RRB JE IT (CBT I) Mock Test- 4 - Question 24
Save

The average of three numbers is 135. The largest number is 195 and the difference between the other two is 20. The smallest number is:
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 24

According to the question,

195 + x + x + 20 = 135 x 3

⇒ 2x + 215 = 405

⇒ 2x = 405 - 215 = 190

∴ x = 190 / 2

= 95

= smallest number

RRB JE IT (CBT I) Mock Test- 4 - Question 25
Save

Distance between the parallel lines 3x + 4y – 15 = 0 and 9x + 12y – 20 = 0 is
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 25

3x + 4y - 15 = 0

Or 9x + 12y -45 = 0………………..(1)

And 9x + 12y - 20 = 0………………(2)

The distance between two parallel lines

ax + by +c1 = 0 and ax + by +c2 = 0 is

=

= 25/15 = 5/3 units

RRB JE IT (CBT I) Mock Test- 4 - Question 26
Save

In a container of 56 litres the ratio of petrol to oil is 6:1. How much oil must be added to the mixture to make this ratio 2:1?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 26

Quantity of petrol = (6/7) x 56 = 48 Litre

Quantity of oil = (1/7) x 56 = 8 litre

Given, New Ratio = 48/8+x=12

48 = 16 + 2x

2x = 48 – 16

2x = 32

x = 16

16 litre is to be added

RRB JE IT (CBT I) Mock Test- 4 - Question 27
Save

'A' starts a business with ₹ 3,500 and after 5 months, B joins with A as his partner. After a year, the profit is divided in the ratio 2:3 what is B's contribution to the capital?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 27

Let B’s investment be Rs x then

3500 x 12/x X 7 = ⅔

⇒ 6000 x 3 = 2x

⇒ x = ₹9,000

RRB JE IT (CBT I) Mock Test- 4 - Question 28
Save

If a = 12, b = 13 and c = 14, then the value of b² c² + c² a² + a² b² – a⁴ – b⁴ – c⁴ is.
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 28

b² c² + c² a² + a² b² – a⁴ – b⁴ – c⁴

= −12(2a⁴ + 2b⁴ + 2c⁴ – 2a² b² – 2b² c² – 2c² a²)

= −12[(a² − b²)² + (b² – c²)² + (c² – a²)²]

= −12[(144 − 169)² + (169 – 196)² + (196 – 144)²]

= −12[( −25)² + (27)² + (52)²] = –2029

RRB JE IT (CBT I) Mock Test- 4 - Question 29
Save

The midpoint of the line segment joining (3,-8) and (x + 2, -2) is (4, -5). What is the value of X?
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 29

Midpoint of (x1, y1) and (x2, y2)

X = (x1 + x2)/2

4 = (3 + x + 2)/2

⇒ (x+5)/2 = 4 ⇒ x = 3

RRB JE IT (CBT I) Mock Test- 4 - Question 30
Save

A man saves 25% of his salary. If due to price rise he increases his monthly expenses by 25% and he is able to save only Rs. 25 per month. Find his monthly salary.
Detailed Solution for RRB JE IT (CBT I) Mock Test- 4 - Question 30

Expenses before price rise = 100 - 25 = 75

25% increase in expenses = 100 + 25

= Rs. 125

Monthly Expenses = (75 x 125) / 100

= 375/4

Saving = 100 - 375/4 = 25/4

If saving in 25/4 then salary = 100

IF saving in 25 then salary

= (100 x 25 x 4)/25

= Rs. 400

View more questions
153 tests
Join Course
Information about RRB JE IT (CBT I) Mock Test- 4 Page
In this test you can find the Exam questions for RRB JE IT (CBT I) Mock Test- 4 solved & explained in the simplest way possible. Besides giving Questions and answers for RRB JE IT (CBT I) Mock Test- 4, EduRev gives you an ample number of Online tests for practice

Top Courses for Computer Science Engineering (CSE)

Download as PDF

Top Courses for Computer Science Engineering (CSE)

Important Questions for RRB JE IT (CBT I) Mock Test- 4

Find all the important questions for RRB JE IT (CBT I) Mock Test- 4 at EduRev.Get fully prepared for RRB JE IT (CBT I) Mock Test- 4 with EduRev's comprehensive question bank and test resources. Our platform offers a diverse range of question papers covering various topics within the RRB JE IT (CBT I) Mock Test- 4 syllabus. Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered. The questions are designed to challenge you and help you gain confidence in tackling the actual exam. Maximize your chances of success by utilizing EduRev's extensive collection of RRB JE IT (CBT I) Mock Test- 4 resources.

RRB JE IT (CBT I) Mock Test- 4 MCQs with Answers

Prepare for the RRB JE IT (CBT I) Mock Test- 4 within the Computer Science Engineering (CSE) exam with comprehensive MCQs and answers at EduRev. Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus. Access the best books, study materials, and notes curated by toppers to enhance your preparation. Stay updated with the exam date and receive expert preparation tips and paper analysis. Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.

Online Tests for RRB JE IT (CBT I) Mock Test- 4 RRB JE Mock Test Series for Computer Science Engineering 2025

Practice with a wide array of question papers that follow the exam pattern and syllabus. Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement. Access detailed solutions and explanations for each test to enhance your understanding of concepts. With EduRev's Online Tests, you can build confidence, boost your performance, and ace RRB JE IT (CBT I) Mock Test- 4 with ease. Join thousands of successful students who have benefited from our trusted online resources.
© EduRev
Education Revolution
Signup to see your scores go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup