EduSahara™ Assignment
Name : Proportion Concepts
Chapter : Ratio and Proportion
Grade : ICSE Grade VI
License : Non Commercial Use
Question
1
1.
Find the product of extremes of
8
:
10
and
16
:
3
(i)
23
(ii)
26
(iii)
22
(iv)
160
(v)
24
Question
2
2.
Find the product of extremes of
7
19
:
15
19
and
19
12
:
16
13
(i)
6
13
(ii)
110
247
(iii)
16
35
(iv)
5
4
(v)
112
247
Question
3
3.
Find the product of means of
9
:
15
and
1
:
7
(i)
14
(ii)
63
(iii)
18
(iv)
15
(v)
13
Question
4
4.
Find the product of means of
9
13
:
18
11
and
5
16
:
18
7
(i)
162
91
(ii)
47
88
(iii)
45
86
(iv)
45
88
(v)
43
88
Question
5
5.
Which of the ratios is proportional to 32 : 8?
(i)
20
:
2
(ii)
20
:
5
(iii)
21
:
5
(iv)
20
:
7
(v)
19
:
5
Question
6
6.
Find the missing value in the equation
____
:
3
=
32
:
8
(i)
9
(ii)
11
(iii)
13
(iv)
15
(v)
12
Question
7
7.
Find the missing value in the equation
28
:
____
=
12
:
3
(i)
7
(ii)
6
(iii)
8
(iv)
10
(v)
5
Question
8
8.
Find the missing value in the equation
16
:
4
=
____
:
3
(i)
14
(ii)
13
(iii)
11
(iv)
12
(v)
9
Question
9
9.
Find the missing value in the equation
16
:
4
=
8
:
____
(i)
3
(ii)
(-1)
(iii)
2
(iv)
1
(v)
4
Question
10
10.
Find the number which bears the same ratio
to
7
8
that
2
5
does to
14
5
(i)
3
8
(ii)
(
-1
8
)
(iii)
1
10
(iv)
1
8
(v)
1
6
Question
11
11.
If
a
:
b
::
c
:
d
,
then
(i)
ac = bd
(ii)
abc = bcd
(iii)
ad = bc
(iv)
ab = cd
Question
12
12.
The ratio 5 : 4 is proportional to which of the following ratios?
(i)
10
:
24
(ii)
15
:
12
(iii)
30
:
8
(iv)
20
:
20
(v)
25
:
16
Question
13
13.
Which of the following represents a proportion ?
(i)
32
:
40
::
64
:
80
(ii)
31
:
39
::
93
:
156
(iii)
34
:
42
::
102
:
84
(iv)
33
:
41
::
66
:
123
(v)
30
:
38
::
120
:
114
Question
14
14.
Which of the following does not represent a proportion ?
(i)
12
:
10
::
36
:
30
(ii)
12
:
9
::
48
:
36
(iii)
12
:
8
::
60
:
40
(iv)
21
:
18
::
42
:
36
(v)
5
:
4
::
10
:
12
Question
15
15.
If
15
:
25
::
x
:
15
, find '
x
'
(i)
12
(ii)
10
(iii)
9
(iv)
6
(v)
8
Assignment Key
1) (v)
2) (v)
3) (iv)
4) (iv)
5) (ii)
6) (v)
7) (i)
8) (iv)
9) (iii)
10) (iv)
11) (iii)
12) (ii)
13) (i)
14) (v)
15) (iii)
