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
17.
380952
is
(i)
3809523380952
(ii)
17.380952
(iii)
380952
(iv)
380952380952
(v)
38095231
Question
2
2.
The recurring part of the decimal
0.33333333333333...
is
(i)
333
(ii)
330
(iii)
0.3
(iv)
3
(v)
33
Question
3
3.
Convert the non-terminating recurring decimal
15.
518
to rational number
(i)
421
27
(ii)
419
27
(iii)
419
29
(iv)
419
25
(v)
139
9
Question
4
4.
Convert the non-terminating recurring decimal
28.27777777777777...
to rational number
(i)
509
16
(ii)
511
18
(iii)
509
18
(iv)
169
6
(v)
509
20
Question
5
5.
Convert the fraction
1
3
to non-terminating recurring decimal
(i)
0.0
3
(ii)
0.
3
(iii)
3.
3
(iv)
33.
3
(v)
0.
0
Question
6
6.
Convert the fraction
331
21
to non-terminating recurring decimal
(i)
157.
619047
(ii)
15.
761904
(iii)
0.15
761904
(iv)
1576.
190476
(v)
1.5
761904
Question
7
7.
Which of the following fractions converts to a non-terminating recurring decimal?
(i)
2880
40
(ii)
1
3
(iii)
73
1
(iv)
2730
20
(v)
144
1
Question
8
8.
Which of the following fractions converts to a terminating decimal?
(i)
107
9
(ii)
5320
80
(iii)
2
33
(iv)
1
3
(v)
1
39
Question
9
9.
Express
7
10
as a decimal correct to 1 decimal places
(i)
0.1
(ii)
0.8
(iii)
7
(iv)
0.5
(v)
0.7
Question
10
10.
Express
61
100
as a decimal correct to 2 decimal places
(i)
0.61
(ii)
6.1
(iii)
0.06
(iv)
0.71
(v)
0.41
Question
11
11.
Express
971
1000
as a decimal correct to 3 decimal places
(i)
0.771
(ii)
1.071
(iii)
0.097
(iv)
9.71
(v)
0.971
Question
12
12.
Express
4233
10000
as a decimal correct to 4 decimal places
(i)
0.5233
(ii)
0.4233
(iii)
0.2233
(iv)
0.0423
(v)
4.233
Question
13
13.
4.2 =
(i)
420
(ii)
21
50
(iii)
42
(iv)
21
5
(v)
21
500
Question
14
14.
6.1 =
(i)
61
(ii)
61
10
(iii)
61
1000
(iv)
610
(v)
61
100
Question
15
15.
13.48 =
(i)
1348
(ii)
337
2500
(iii)
337
250
(iv)
674
5
(v)
337
25
Question
16
16.
3.218 =
(i)
1609
5
(ii)
1609
50000
(iii)
1609
5000
(iv)
1609
50
(v)
1609
500
Question
17
17.
7.20 =
(i)
36
5
(ii)
720
(iii)
9
125
(iv)
18
25
(v)
72
Question
18
18.
19.20 =
(i)
24
125
(ii)
48
25
(iii)
96
5
(iv)
1920
(v)
192
Assignment Key
1) (iii)
2) (iv)
3) (ii)
4) (iii)
5) (ii)
6) (ii)
7) (ii)
8) (ii)
9) (v)
10) (i)
11) (v)
12) (ii)
13) (iv)
14) (ii)
15) (v)
16) (v)
17) (i)
18) (iii)
