EduSahara™ Assignment
Name : Computation
Chapter : Logarithms
Grade : ICSE Grade IX
License : Non Commercial Use
Question
1
1.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the characteristic of
log
480
=
(i)
3
(ii)
4
(iii)
1
(iv)
2
(v)
0
Question
2
2.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the characteristic of
log
420
25
=
(i)
64
(ii)
65
(iii)
67
(iv)
66
(v)
62
Question
3
3.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the mantissa of
log
162
62
=
(i)
7.9828
(ii)
8.9828
(iii)
2.9828
(iv)
0.9828
(v)
1.9828
Question
4
4.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
270
23
is
(i)
55.9176
(ii)
54.9176
(iii)
57.9176
(iv)
53.9176
(v)
56.9176
Question
5
5.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the number of digits in the expanded form of
1600
5
is
(i)
20
(ii)
15
(iii)
16
(iv)
17
(v)
18
Question
6
6.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
486
44
648
6
is
(i)
2.1427
(ii)
1.1427
(iii)
7.1427
(iv)
8.1427
(v)
0.1427
Question
7
7.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
10.00
1.2800
is
(i)
0.107
(ii)
7.107
(iii)
2.107
(iv)
1.107
(v)
8.107
Question
8
8.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
10
2016
1152
is
(i)
1.2431
(ii)
8.2431
(iii)
0.2431
(iv)
2.2431
(v)
7.2431
Question
9
9.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
630
30
is
(i)
82.976
(ii)
84.976
(iii)
81.976
(iv)
85.976
(v)
83.976
Question
10
10.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the number of digits in the expanded form of
4500
29
is
(i)
106
(ii)
108
(iii)
105
(iv)
103
(v)
107
Question
11
11.
log
22
8
22
35
=
(i)
3.375
(ii)
4.375
(iii)
5.375
(iv)
2.375
(v)
6.375
Question
12
12.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
120
10
120
2
is
(i)
7.2
(ii)
1.2
(iii)
2.2
(iv)
8.2
(v)
0.2
Question
13
13.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
10.00
2.4000
is
(i)
1.38
(ii)
2.38
(iii)
7.38
(iv)
8.38
(v)
0.38
Question
14
14.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
10
1296
512
is
(i)
8.4034
(ii)
7.4034
(iii)
0.4034
(iv)
2.4034
(v)
1.4034
Question
15
15.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
180
42
is
(i)
94.7142
(ii)
93.7142
(iii)
96.7142
(iv)
95.7142
(v)
92.7142
Question
16
16.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the number of digits in the expanded form of
2160
14
is
(i)
48
(ii)
45
(iii)
46
(iv)
50
(v)
47
Question
17
17.
log
50
14
50
13
=
(i)
2.9286
(ii)
1.9286
(iii)
7.9286
(iv)
8.9286
(v)
0.9286
Question
18
18.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
360
48
150
9
is
(i)
2.1596
(ii)
0.1596
(iii)
7.1596
(iv)
8.1596
(v)
1.1596
Question
19
19.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
10.00
1.2600
is
(i)
8.1
(ii)
0.1
(iii)
1.1
(iv)
2.1
(v)
7.1
Question
20
20.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
10
1920
1350
is
(i)
2.1529
(ii)
0.1529
(iii)
8.1529
(iv)
7.1529
(v)
1.1529
Assignment Key
1) (iv)
2) (ii)
3) (iv)
4) (i)
5) (iv)
6) (v)
7) (i)
8) (iii)
9) (v)
10) (i)
11) (ii)
12) (v)
13) (v)
14) (iii)
15) (i)
16) (v)
17) (v)
18) (ii)
19) (ii)
20) (ii)
