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
140
=
(i)
2
(ii)
3
(iii)
0
(iv)
1
(v)
5
Question
2
2.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the characteristic of
log
252
63
=
(i)
151
(ii)
149
(iii)
150
(iv)
153
(v)
152
Question
3
3.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the mantissa of
log
108
49
=
(i)
1.6317
(ii)
2.6317
(iii)
8.6317
(iv)
0.6317
(v)
7.6317
Question
4
4.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
720
25
is
(i)
69.4275
(ii)
71.4275
(iii)
70.4275
(iv)
72.4275
(v)
73.4275
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
1500
36
is
(i)
115
(ii)
113
(iii)
114
(iv)
116
(v)
118
Question
6
6.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
128
39
160
20
is
(i)
0.5364
(ii)
8.5364
(iii)
1.5364
(iv)
7.5364
(v)
2.5364
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
1.6800
is
(i)
1.225
(ii)
2.225
(iii)
8.225
(iv)
0.225
(v)
7.225
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
2400
640
is
(i)
8.574
(ii)
2.574
(iii)
0.574
(iv)
7.574
(v)
1.574
Question
9
9.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
216
44
is
(i)
100.7092
(ii)
103.7092
(iii)
104.7092
(iv)
101.7092
(v)
102.7092
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
2025
23
is
(i)
75
(ii)
76
(iii)
80
(iv)
78
(v)
77
Question
11
11.
log
14
2
14
6
=
(i)
5
(ii)
4
(iii)
2
(iv)
3
(v)
1
Question
12
12.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
576
39
126
14
is
(i)
2.2732
(ii)
1.2732
(iii)
7.2732
(iv)
8.2732
(v)
0.2732
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
6.4800
is
(i)
2.811
(ii)
0.811
(iii)
1.811
(iv)
7.811
(v)
8.811
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
1680
640
is
(i)
8.4192
(ii)
0.4192
(iii)
2.4192
(iv)
7.4192
(v)
1.4192
Question
15
15.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
700
71
is
(i)
199.9879
(ii)
203.9879
(iii)
200.9879
(iv)
201.9879
(v)
202.9879
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
2880
39
is
(i)
137
(ii)
134
(iii)
133
(iv)
135
(v)
136
Question
17
17.
log
7
7
7
48
=
(i)
4.8571
(ii)
8.8571
(iii)
6.8571
(iv)
7.8571
(v)
5.8571
Question
18
18.
If
log
2 = 0.3010,
log
3 = 0.4771,
log
5 = 0.6989,
log
7 = 0.8451,
the value of
log
250
24
216
44
is
(i)
3.7849
(ii)
1.7849
(iii)
0.7849
(iv)
2.7849
(v)
9.7849
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
3.4560
is
(i)
8.538
(ii)
0.538
(iii)
2.538
(iv)
7.538
(v)
1.538
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
960
630
is
(i)
0.1828
(ii)
2.1828
(iii)
8.1828
(iv)
7.1828
(v)
1.1828
Assignment Key
1) (i)
2) (i)
3) (iv)
4) (ii)
5) (i)
6) (i)
7) (iv)
8) (iii)
9) (v)
10) (v)
11) (iv)
12) (v)
13) (ii)
14) (ii)
15) (iv)
16) (iv)
17) (iii)
18) (ii)
19) (ii)
20) (i)
