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RRB Group D Mock Test - 13 - Railways MCQ


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30 Questions MCQ Test - RRB Group D Mock Test - 13

RRB Group D Mock Test - 13 for Railways 2024 is part of Railways preparation. The RRB Group D Mock Test - 13 questions and answers have been prepared according to the Railways exam syllabus.The RRB Group D Mock Test - 13 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 - 13 below.
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RRB Group D Mock Test - 13 - Question 1

The ratio of the present ages of a son and his father is 1:5 and that of his mother and father is 4:5. After 2 yrs the ratio of the age of the son to that of his mother becomes 3:10. What is the present age of the father?

Detailed Solution for RRB Group D Mock Test - 13 - Question 1

Let the present age of Father, Mother and son be x years, y years and z years
Now z/x = 1/5
⇒ x = 5z
⇒ z = 1/5 x
y/x = 4/5
⇒ 4x = 5y
y = 4/5 x
After 2 years
z + 2/y + 2 = 3/10
∴ 10z + 20 = 3y + 6
10 x 1/5 x + 14 = 3 x 4/5 x
2x - 12/5 x = - 14
10x - 12x/5 = - 14
- 2x/5 = -14
x = 70/2 = 35
∴ Father present age is 35 years

RRB Group D Mock Test - 13 - Question 2

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

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RRB Group D Mock Test - 13 - Question 3

A room having length 15 m and breadth 12 m. What will be the total cost if the floor is made at Rs. 125 per m2?

Detailed Solution for RRB Group D Mock Test - 13 - Question 3

A room length = 15 m
breadth = 12 m
So Area of room = 15 x 12 = 180 m2
For making floor we need Rs. 125 per m2
For making floor 180 m2 area we pay = 125 x 180 = Rs 22,500

RRB Group D Mock Test - 13 - Question 4

The average age of a class is 15.8 yrs.The average age of the boys in the class is 16.4 yrs while that of the girls is 15.4 yrs. What is the ratio of the girls in the class?

Detailed Solution for RRB Group D Mock Test - 13 - Question 4

Let the ratio be a : b
Total no. of boys = 16.4a
Total no. of girls = 15.4b
Total no. of students
= 16.4a + 15.4b
Average age of boys = 15.8a
Average age of girls = 15.8b
16.4a + 15.4b = 15.8a + 15.8b
0.6a = 0.4b
⇒ a/b = 0.4/0.6 = 2/3

RRB Group D Mock Test - 13 - Question 5
Pointing to a paragraph a lady tells Manav. "I am the only daughter of this lady and her son is your maternal uncle." How is the speaker related to Manav's father ?
RRB Group D Mock Test - 13 - Question 6
A boat took 4 hours to go 20 km upstream in a river which is moving with the speed 3 km/hr. The speed of boat in still water is
RRB Group D Mock Test - 13 - Question 7
Which state has the lowest sex ratio?
RRB Group D Mock Test - 13 - Question 8
Choose the analogous pair.
Afflict : Trouble
RRB Group D Mock Test - 13 - Question 9
The book 'Post Office' was written by
RRB Group D Mock Test - 13 - Question 10
Choose the word which is least like the other words in the group .
Detailed Solution for RRB Group D Mock Test - 13 - Question 10
All except Foul are synonyms.
RRB Group D Mock Test - 13 - Question 11
In a certain code language GERMINATION is written as IMGRENNOAIT. How is ESTABLISHED written in that code?
RRB Group D Mock Test - 13 - Question 12
Complete the analogous pair.
Hermit : Solitude : : Intruder : ?
RRB Group D Mock Test - 13 - Question 13
If the annual rate of simple interest increases from 10% to 12.5%, a man\'s yearly income increases by Rs. 1250. His principal (in Rs.) is :
RRB Group D Mock Test - 13 - Question 14
In 1815, the German states were organised into a Germanic confederation along with :
RRB Group D Mock Test - 13 - Question 15

How many squares are there in the following figure?

Detailed Solution for RRB Group D Mock Test - 13 - Question 15

There are a total of nineteen squares in the figure,
which have been marked as shown in the following figure



There are three squares in the upper row EFIH, FGJI and GBLJ
There are five squares in the middle row - TQRS, QHPR, HIOP, IJNO and JLMN
There are three squares in the lower row - SRUD, RPVU, POWV
There are a total of six squares three in each of the two rectangles - ABMS, TLCD, AEPS, EGNP, FBMO, THVD, QIWU, ILCW
There are two squares in the main rectangle ABCD - AFWD, EBCV

RRB Group D Mock Test - 13 - Question 16
Which is the Currency of Jordan?
RRB Group D Mock Test - 13 - Question 17
The Justice Nanavati Enquiry Commission was set up by the NDA Government to look into:
RRB Group D Mock Test - 13 - Question 18
Observe the given dice below and answer which number is opposite to 3?
           
RRB Group D Mock Test - 13 - Question 19
Dual citizenship is offered
RRB Group D Mock Test - 13 - Question 20
A child went 90 m in the East to look for his father, then he turned right and went 20 m. After this he turned right and after going 30 m he reached to his uncle's house. His father was not there. From there he went 100 m to his north and met his father. How far did he meet his father from the starting point?
Detailed Solution for RRB Group D Mock Test - 13 - Question 20
RRB Group D Mock Test - 13 - Question 21
Which state government had launched ‘Saubhagya Yojana’, aimed at providing electricity to all the villages across the state?
RRB Group D Mock Test - 13 - Question 22
Who among the following is the creator of the Rock Garden in Chandigarh?
RRB Group D Mock Test - 13 - Question 23
The 'satellite freight city' is being developed near which of the following cities?
RRB Group D Mock Test - 13 - Question 24
Which state has launched nearly 249 skill development centres throughout the state with the aim to improve skilled manpower?
RRB Group D Mock Test - 13 - Question 25
Which of the following not used in the Computers
RRB Group D Mock Test - 13 - Question 26
Which of these services of GSM service provider has personal security code for its subscirbers?
RRB Group D Mock Test - 13 - Question 27
Which of the following States in India lead in the production of rice?
RRB Group D Mock Test - 13 - Question 28
TRAI is concerned with:
RRB Group D Mock Test - 13 - Question 29
Identify the correct order of the processes of soil-erosion from the following
RRB Group D Mock Test - 13 - Question 30
The place which will witness the first rays of the New Milennium is situated in:
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