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
23.
2
is
(i)
2
(ii)
22
(iii)
222
(iv)
23.2
Question
2
2.
The recurring part of the decimal
16.44444444444444...
is
(i)
444
(ii)
441
(iii)
16.4
(iv)
4
(v)
44
Question
3
3.
Convert the non-terminating recurring decimal
26.
5
to rational number
(i)
239
7
(ii)
79
3
(iii)
239
11
(iv)
241
9
(v)
239
9
Question
4
4.
Convert the non-terminating recurring decimal
10.74074074074074...
to rational number
(i)
10
(ii)
290
27
(iii)
292
27
(iv)
58
5
(v)
32
3
Question
5
5.
Convert the fraction
301
18
to non-terminating recurring decimal
(i)
167.
2
(ii)
0.167
2
(iii)
16.7
2
(iv)
1672.
2
(v)
1.67
2
Question
6
6.
Convert the fraction
344
21
to non-terminating recurring decimal
(i)
163.
809523
(ii)
1.6
380952
(iii)
0.16
380952
(iv)
16.
380952
(v)
1638.
095238
Question
7
7.
Which of the following fractions converts to a non-terminating recurring decimal?
(i)
3360
320
(ii)
1
3
(iii)
169
4
(iv)
165
2
(v)
1320
32
Question
8
8.
Which of the following fractions converts to a terminating decimal?
(i)
1
30
(ii)
1
15
(iii)
6120
256
(iv)
149
9
(v)
1
3
Question
9
9.
Express
3
10
as a decimal correct to 1 decimal places
(i)
0.3
(ii)
3
(iii)
0.4
(iv)
0
(v)
0.1
Question
10
10.
Express
87
100
as a decimal correct to 2 decimal places
(i)
0.87
(ii)
0.67
(iii)
8.7
(iv)
0.97
(v)
0.09
Question
11
11.
Express
759
1000
as a decimal correct to 3 decimal places
(i)
7.59
(ii)
0.076
(iii)
0.759
(iv)
0.859
(v)
0.559
Question
12
12.
Express
6329
10000
as a decimal correct to 4 decimal places
(i)
0.6329
(ii)
0.4329
(iii)
0.0633
(iv)
0.7329
(v)
6.329
Question
13
13.
5.3 =
(i)
53
100
(ii)
530
(iii)
53
10
(iv)
53
1000
(v)
53
Question
14
14.
1.9 =
(i)
19
100
(ii)
19
(iii)
19
10
(iv)
19
1000
(v)
190
Question
15
15.
16.66 =
(i)
1666
(ii)
833
5
(iii)
833
50
(iv)
833
5000
(v)
833
500
Question
16
16.
4.687 =
(i)
4687
1000
(ii)
4687
10000
(iii)
4687
100
(iv)
4687
10
(v)
4687
100000
Question
17
17.
8.13 =
(i)
813
(ii)
813
10
(iii)
813
10000
(iv)
813
1000
(v)
813
100
Question
18
18.
11.89 =
(i)
1189
(ii)
1189
100
(iii)
1189
1000
(iv)
1189
10000
(v)
1189
10
Assignment Key
1) (i)
2) (iv)
3) (v)
4) (ii)
5) (iii)
6) (iv)
7) (ii)
8) (iii)
9) (i)
10) (i)
11) (iii)
12) (i)
13) (iii)
14) (iii)
15) (iii)
16) (i)
17) (v)
18) (ii)
