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
10.
703
is
(i)
10.703
(ii)
7037703
(iii)
70371
(iv)
703703
(v)
703
Question
2
2.
The recurring part of the decimal
19.70370370370370...
is
(i)
19.703
(ii)
7037703
(iii)
703
(iv)
703703
(v)
70371
Question
3
3.
Convert the non-terminating recurring decimal
1.
1
to rational number
(i)
10
11
(ii)
10
7
(iii)
8
9
(iv)
10
9
(v)
4
3
Question
4
4.
Convert the non-terminating recurring decimal
7.70370370370370...
to rational number
(i)
208
25
(ii)
208
27
(iii)
208
29
(iv)
70
9
(v)
206
27
Question
5
5.
Convert the fraction
251
27
to non-terminating recurring decimal
(i)
92.
962
(ii)
9.
296
(iii)
929.
629
(iv)
0.9
296
(v)
0.09
296
Question
6
6.
Convert the fraction
109
9
to non-terminating recurring decimal
(i)
121.
1
(ii)
1211.
1
(iii)
1.2
1
(iv)
0.
1
(v)
12.
1
Question
7
7.
Which of the following fractions converts to a non-terminating recurring decimal?
(i)
889
25
(ii)
1728
25
(iii)
1
3
(iv)
2464
160
(v)
3456
100
Question
8
8.
Which of the following fractions converts to a terminating decimal?
(i)
163
90
(ii)
163
9
(iii)
4788
40
(iv)
209
18
(v)
163
108
Question
9
9.
Express
9
10
as a decimal correct to 1 decimal places
(i)
9
(ii)
0.1
(iii)
0.7
(iv)
0.9
(v)
1
Question
10
10.
Express
57
100
as a decimal correct to 2 decimal places
(i)
0.06
(ii)
0.37
(iii)
5.7
(iv)
0.67
(v)
0.57
Question
11
11.
Express
889
1000
as a decimal correct to 3 decimal places
(i)
0.689
(ii)
8.89
(iii)
0.989
(iv)
0.089
(v)
0.889
Question
12
12.
Express
4829
10000
as a decimal correct to 4 decimal places
(i)
0.2829
(ii)
0.0483
(iii)
0.4829
(iv)
4.829
(v)
0.5829
Question
13
13.
1.4 =
(i)
7
50
(ii)
7
500
(iii)
140
(iv)
7
5
(v)
14
Question
14
14.
1.1 =
(i)
11
1000
(ii)
11
100
(iii)
11
10
(iv)
11
(v)
110
Question
15
15.
7.31 =
(i)
731
10
(ii)
731
100
(iii)
731
(iv)
731
10000
(v)
731
1000
Question
16
16.
9.480 =
(i)
237
250
(ii)
237
2500
(iii)
474
5
(iv)
948
(v)
237
25
Question
17
17.
10.14 =
(i)
1014
(ii)
507
50
(iii)
507
5000
(iv)
507
5
(v)
507
500
Question
18
18.
4.75 =
(i)
19
40
(ii)
95
2
(iii)
19
4
(iv)
19
400
(v)
475
Assignment Key
1) (v)
2) (iii)
3) (iv)
4) (ii)
5) (ii)
6) (v)
7) (iii)
8) (iii)
9) (iv)
10) (v)
11) (v)
12) (iii)
13) (iv)
14) (iii)
15) (ii)
16) (v)
17) (ii)
18) (iii)
