EduSahara™ Assignment
Name : Rational Numbers and their Decimal Expansions
Chapter : Real Numbers
Grade : CBSE Grade X
License : Non Commercial Use
Question
1
1.
The recurring part of the decimal
28.3
8
is
(i)
838
(ii)
882
(iii)
88
(iv)
28.38
(v)
8
Question
2
2.
The recurring part of the decimal
2.22222222222222...
is
(i)
2
(ii)
222
(iii)
2.2
(iv)
22
Question
3
3.
Convert the non-terminating recurring decimal
20.
185
to rational number
(i)
109
5
(ii)
181
9
(iii)
547
27
(iv)
545
29
(v)
545
27
Question
4
4.
Convert the non-terminating recurring decimal
5.85185185185185...
to rational number
(i)
158
29
(ii)
52
9
(iii)
158
25
(iv)
160
27
(v)
158
27
Question
5
5.
Convert the fraction
119
9
to non-terminating recurring decimal
(i)
132.
2
(ii)
0.13
2
(iii)
13.
2
(iv)
1322.
2
(v)
1.3
2
Question
6
6.
Convert the fraction
100
9
to non-terminating recurring decimal
(i)
1111.
1
(ii)
111.
1
(iii)
11.
1
(iv)
1.
1
(v)
0.
1
Question
7
7.
Which of the following fractions converts to a non-terminating recurring decimal?
(i)
59
4
(ii)
2200
160
(iii)
188
9
(iv)
3458
50
(v)
55
2
Question
8
8.
Which of the following fractions converts to a terminating decimal?
(i)
155
162
(ii)
155
9
(iii)
3240
80
(iv)
235
18
(v)
155
63
Question
9
9.
Express
3
10
as a decimal correct to 1 decimal places
(i)
0.4
(ii)
0.3
(iii)
3
(iv)
0.1
(v)
0
Question
10
10.
Express
49
100
as a decimal correct to 2 decimal places
(i)
0.05
(ii)
0.49
(iii)
0.59
(iv)
0.29
(v)
4.9
Question
11
11.
Express
993
1000
as a decimal correct to 3 decimal places
(i)
0.793
(ii)
1.093
(iii)
9.93
(iv)
0.993
(v)
0.099
Question
12
12.
Express
3699
10000
as a decimal correct to 4 decimal places
(i)
0.037
(ii)
3.699
(iii)
0.3699
(iv)
0.4699
(v)
0.1699
Question
13
13.
8.8 =
(i)
880
(ii)
88
(iii)
44
5
(iv)
11
125
(v)
22
25
Question
14
14.
2.9 =
(i)
29
100
(ii)
290
(iii)
29
(iv)
29
10
(v)
29
1000
Question
15
15.
3.33 =
(i)
333
1000
(ii)
333
10000
(iii)
333
(iv)
333
10
(v)
333
100
Question
16
16.
5.853 =
(i)
5853
10000
(ii)
5853
100
(iii)
5853
10
(iv)
5853
100000
(v)
5853
1000
Question
17
17.
8.11 =
(i)
811
1000
(ii)
811
(iii)
811
10000
(iv)
811
10
(v)
811
100
Question
18
18.
8.41 =
(i)
841
(ii)
841
100
(iii)
841
10
(iv)
841
1000
(v)
841
10000
Assignment Key
1) (v)
2) (i)
3) (v)
4) (v)
5) (iii)
6) (iii)
7) (iii)
8) (iii)
9) (ii)
10) (ii)
11) (iv)
12) (iii)
13) (iii)
14) (iv)
15) (v)
16) (v)
17) (v)
18) (ii)
