Examsnet
Unconfined exams practice
Home
Exams
Banking Entrance Exams
CUET Exam Papers
Defence Exams
Engineering Exams
Finance Entrance Exams
GATE Exam Practice
Insurance Exams
International Exams
JEE Exams
LAW Entrance Exams
MBA Entrance Exams
MCA Entrance Exams
Medical Entrance Exams
Other Entrance Exams
Police Exams
Public Service Commission (PSC)
RRB Entrance Exams
SSC Exams
State Govt Exams
Subjectwise Practice
Teacher Exams
SET Exams(State Eligibility Test)
UPSC Entrance Exams
Aptitude
Algebra and Higher Mathematics
Arithmetic
Commercial Mathematics
Data Based Mathematics
Geometry and Mensuration
Number System and Numeracy
Problem Solving
Board Exams
Andhra
Bihar
CBSE
Gujarat
Haryana
ICSE
Jammu and Kashmir
Karnataka
Kerala
Madhya Pradesh
Maharashtra
Odisha
Tamil Nadu
Telangana
Uttar Pradesh
English
Competitive English
Certifications
Technical
Cloud Tech Certifications
Security Tech Certifications
Management
IT Infrastructure
More
About
Careers
Contact Us
Our Apps
Privacy
Test Index
SSC CGL Tier-1 20-Aug-2021 Shift 2 Solved Paper
Show Para
Hide Para
Share question:
© examsnet.com
Question : 61
Total: 100
The volume of a wall whose height is 10 times its width and whose length is 8 times its height is
51.2
m
3
. What is the cost (in
₹
) of painting the wall on one side at the rate of
₹
1000
∕
m
2
?
12800
12750
12250
12500
Validate
Solution:
Let the width of wall
=
b
m
Then height of wall
=
10
b
m
and length of wall
=
10
b
×
8
=
80
b
m
Given volume of wall
=
51.2
m
3
⇒
I
×
b
×
h
=
51.2
⇒
80
b
×
b
×
10
b
=
51.2
⇒
800
b
3
=
51.2
⇒
b
3
=
512
8000
⇒
b
=
8
20
=
2
5
m
=
l
×
b
=
80
b
×
b
=
80
×
b
2
=
80
×
4
25
=
12.8
m
2
∴
Required cost
=
12.8
×
1000
= ₹ 12800
© examsnet.com
Go to Question:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Prev Question
Next Question