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.
185
is
(i)
23.185
(ii)
18512
(iii)
185
(iv)
1851185
(v)
185185
Question
2
2.
The recurring part of the decimal
3.37037037037037...
is
(i)
3703370
(ii)
3.370
(iii)
370370
(iv)
37033
(v)
370
Question
3
3.
Convert the non-terminating recurring decimal
7.
962
to rational number
(i)
43
5
(ii)
215
29
(iii)
217
27
(iv)
215
27
(v)
71
9
Question
4
4.
Convert the non-terminating recurring decimal
1.77777777777777...
to rational number
(i)
2
(ii)
16
11
(iii)
16
7
(iv)
14
9
(v)
16
9
Question
5
5.
Convert the fraction
409
21
to non-terminating recurring decimal
(i)
194.
761904
(ii)
1.9
476190
(iii)
0.19
476190
(iv)
19.
476190
(v)
1947.
619047
Question
6
6.
Convert the fraction
76
9
to non-terminating recurring decimal
(i)
8.
4
(ii)
844.
4
(iii)
84.
4
(iv)
0.08
4
(v)
0.8
4
Question
7
7.
Which of the following fractions converts to a non-terminating recurring decimal?
(i)
195
1
(ii)
3120
32
(iii)
4256
8
(iv)
197
2
(v)
1
3
Question
8
8.
Which of the following fractions converts to a terminating decimal?
(i)
2475
32
(ii)
101
9
(iii)
184
45
(iv)
184
9
(v)
184
117
Question
9
9.
Express
9
10
as a decimal correct to 1 decimal places
(i)
0.9
(ii)
0.1
(iii)
0.7
(iv)
1
(v)
9
Question
10
10.
Express
47
100
as a decimal correct to 2 decimal places
(i)
4.7
(ii)
0.27
(iii)
0.57
(iv)
0.05
(v)
0.47
Question
11
11.
Express
927
1000
as a decimal correct to 3 decimal places
(i)
1.027
(ii)
9.27
(iii)
0.927
(iv)
0.727
(v)
0.093
Question
12
12.
Express
9463
10000
as a decimal correct to 4 decimal places
(i)
0.9463
(ii)
9.463
(iii)
1.0463
(iv)
0.7463
(v)
0.0946
Question
13
13.
6.1 =
(i)
61
100
(ii)
61
1000
(iii)
61
10
(iv)
610
(v)
61
Question
14
14.
2.7 =
(i)
27
1000
(ii)
270
(iii)
27
10
(iv)
27
(v)
27
100
Question
15
15.
18.62 =
(i)
931
5000
(ii)
1862
(iii)
931
500
(iv)
931
50
(v)
931
5
Question
16
16.
9.645 =
(i)
1929
20000
(ii)
1929
2
(iii)
1929
2000
(iv)
1929
20
(v)
1929
200
Question
17
17.
8.14 =
(i)
407
500
(ii)
407
5
(iii)
407
5000
(iv)
407
50
(v)
814
Question
18
18.
12.93 =
(i)
1293
10
(ii)
1293
1000
(iii)
1293
(iv)
1293
10000
(v)
1293
100
Assignment Key
1) (iii)
2) (v)
3) (iv)
4) (v)
5) (iv)
6) (i)
7) (v)
8) (i)
9) (i)
10) (v)
11) (iii)
12) (i)
13) (iii)
14) (iii)
15) (iv)
16) (v)
17) (iv)
18) (v)
