Q8 Solve the following questions
L/10]
14
(a) Considering that number of men is inversely proportional to the total time taken to
repair a road. Complete the table below.
Number of men
2
4
8
Time (hours)
6
1.5
0.5
[6]
(b) The figure shows an equilateral triangle.
Find the nerimeter of triangle
Answers
Answered by
0
Step-by-step explanation:
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Answered by
0
Answer:
)
Clearly,
x
y
=
3
9
=
5
15
=
8
24
=
11
33
=
26
78
=
1
3
(constant)Therefore, x and y are proportional.
(ii)
Clearly,
x
y
=
2.5
10
=
4
16
=
7.5
30
=
10
40
=
1
4
, while
14
42
=
1
3
i.e.,
2.5
10
=
4
16
=
7.5
30
=
10
40
is not equal to
14
42
.Therefore, x and y are not proportional.
(iii)
Clearly,
x
y
=
5
15
=
7
21
=
9
27
=
25
75
=
1
3
, while
15
60
=
18
72
=
1
4
i.e.,
5
15
=
7
21
=
9
27
=
25
75
is not equal to
15
60
and
18
72
.Therefore, x and y are not proportion
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