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Class VI
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Class X
ICSE Grade VIII - Ratio and Proportion
Question
1
1.
Find the ratio between 5 m and 7 km
0
:
1400
1
:
1398
1
:
1403
1
:
1400
Question
2
2.
If a : b =
3
:
7
, b : c =
1
:
4
and c : d =
2
:
6
,
then a : b : c : d =
3
:
10
:
28
:
84
3
:
4
:
28
:
84
3
:
7
:
28
:
84
4
:
7
:
28
:
84
2
:
7
:
28
:
84
Question
3
3.
An office contains 244 managers, 61 team leaders, 366 developers and 61 testers. The ratio of managers and team leaders =
5
:
1
4
:
1
4
:
-1
3
:
1
4
:
3
Question
4
4.
The antecendent in the ratio
7
15
:
10
3
=
8
3
10
3
7
13
3
5
7
15
Question
5
5.
If a : b =
11
:
20
and b : c =
9
:
16
,
then a : b : c =
98
:
180
:
320
99
:
183
:
320
99
:
177
:
320
99
:
180
:
320
100
:
180
:
320
Question
6
6.
A box contains 159 mangoes, 318 apples and 106 oranges. The ratio of mangoes and apples =
1
:
5
1
:
0
1
:
2
2
:
2
0
:
2
Question
7
7.
If a : b =
24
27
:
5
13
and b : c =
16
38
:
8
29
,
then a : b : c =
64
171
:
42
247
:
40
377
64
171
:
2
13
:
40
377
64
173
:
40
247
:
40
377
64
171
:
40
247
:
40
377
64
169
:
40
247
:
40
377
Question
8
8.
Find the missing value in the equation
20
:
5
=
24
:
____
4
9
5
6
7
Question
9
9.
An office contains 672 employees of 4 types. The managers, team leaders, developers and testers are in the ratio 7 : 6 : 2 : 6. The number of managers in the office =
225
226
224
223
221
Question
10
10.
The consequent in the ratio
2
15
:
20
9
=
22
9
20
7
2
15
0
20
9
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