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
       
       
      540 10
       
    • =
  • (i)
    30
  • (ii)
    25
  • (iii)
    28
  • (iv)
    26
  • (v)
    27
Question 2
2.
    • If
      • log 2 = 0.3010,
      • log 3 = 0.4771,
      • log 5 = 0.6989,
      • log 7 = 0.8451,
    • the characteristic of
    • log
       
       
      540 90
       
    • =
  • (i)
    246
  • (ii)
    248
  • (iii)
    244
  • (iv)
    243
  • (v)
    245
Question 3
3.
    • If
      • log 2 = 0.3010,
      • log 3 = 0.4771,
      • log 5 = 0.6989,
      • log 7 = 0.8451,
    • the mantissa of
    • log
       
       
      120 16
       
    • =
  • (i)
    0.264
  • (ii)
    8.264
  • (iii)
    2.264
  • (iv)
    1.264
  • (v)
    7.264
Question 4
4.
    • If
      • log 2 = 0.3010,
      • log 3 = 0.4771,
      • log 5 = 0.6989,
      • log 7 = 0.8451,
    • the value of
    • log
       
       
      768 58
       
    • is
  • (i)
    165.3358
  • (ii)
    168.3358
  • (iii)
    166.3358
  • (iv)
    167.3358
  • (v)
    169.3358
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 26
       
    • is
  • (i)
    82
  • (ii)
    85
  • (iii)
    84
  • (iv)
    86
  • (v)
    83
Question 6
6.
    • If
      • log 2 = 0.3010,
      • log 3 = 0.4771,
      • log 5 = 0.6989,
      • log 7 = 0.8451,
    • the value of
    • log
       
      162 5
       
      360 12
       
    • is
  • (i)
    2.7766
  • (ii)
    1.7766
  • (iii)
    0.7766
  • (iv)
    3.7766
  • (v)
    4.7766
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)
    8.225
  • (ii)
    1.225
  • (iii)
    2.225
  • (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
      1680

      672
    • is
  • (i)
    8.3979
  • (ii)
    0.3979
  • (iii)
    1.3979
  • (iv)
    7.3979
  • (v)
    2.3979
Question 9
9.
    • If
      • log 2 = 0.3010,
      • log 3 = 0.4771,
      • log 5 = 0.6989,
      • log 7 = 0.8451,
    • the value of
    • log
       
       
      150 8
       
    • is
  • (i)
    18.4072
  • (ii)
    19.4072
  • (iii)
    15.4072
  • (iv)
    17.4072
  • (v)
    16.4072
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
    • 1372 4
       
    • is
  • (i)
    12
  • (ii)
    14
  • (iii)
    13
  • (iv)
    11
  • (v)
    16
Question 11
11.
    • log
       
      2 15
       
      2 6
       
    • =
  • (i)
    2.4
  • (ii)
    8.4
  • (iii)
    7.4
  • (iv)
    0.4
  • (v)
    1.4
Question 12
12.
    • If
      • log 2 = 0.3010,
      • log 3 = 0.4771,
      • log 5 = 0.6989,
      • log 7 = 0.8451,
    • the value of
    • log
       
      196 33
       
      180 41
       
    • is
  • (i)
    0.2223
  • (ii)
    1.2223
  • (iii)
    2.2223
  • (iv)
    9.2223
  • (v)
    3.2223
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)
    2.38
  • (ii)
    8.38
  • (iii)
    0.38
  • (iv)
    1.38
  • (v)
    7.38
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
      700

      1440
    • is
  • (i)
    7.6868
  • (ii)
    6.6868
  • (iii)
    -0.3132
  • (iv)
    1.6868
  • (v)
    0.6868
Question 15
15.
    • If
      • log 2 = 0.3010,
      • log 3 = 0.4771,
      • log 5 = 0.6989,
      • log 7 = 0.8451,
    • the value of
    • log
       
       
      224 31
       
    • is
  • (i)
    70.8531
  • (ii)
    73.8531
  • (iii)
    74.8531
  • (iv)
    71.8531
  • (v)
    72.8531
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
    • 4500 39
       
    • is
  • (i)
    141
  • (ii)
    142
  • (iii)
    143
  • (iv)
    144
  • (v)
    145
Question 17
17.
    • log
       
      2 13
       
      2 30
       
    • =
  • (i)
    2.3077
  • (ii)
    3.3077
  • (iii)
    0.3077
  • (iv)
    4.3077
  • (v)
    1.3077
Question 18
18.
    • If
      • log 2 = 0.3010,
      • log 3 = 0.4771,
      • log 5 = 0.6989,
      • log 7 = 0.8451,
    • the value of
    • log
       
      270 48
       
      504 40
       
    • is
  • (i)
    8.9263
  • (ii)
    0.9263
  • (iii)
    2.9263
  • (iv)
    7.9263
  • (v)
    1.9263
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
      1.0800
    • is
  • (i)
    0.033
  • (ii)
    8.033
  • (iii)
    7.033
  • (iv)
    2.033
  • (v)
    1.033
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
      1296

      896
    • is
  • (i)
    1.1603
  • (ii)
    2.1603
  • (iii)
    8.1603
  • (iv)
    7.1603
  • (v)
    0.1603
    Assignment Key

  •  1) (v)
  •  2) (v)
  •  3) (i)
  •  4) (iv)
  •  5) (iii)
  •  6) (i)
  •  7) (iv)
  •  8) (ii)
  •  9) (iv)
  •  10) (iii)
  •  11) (iv)
  •  12) (ii)
  •  13) (iii)
  •  14) (iii)
  •  15) (v)
  •  16) (iii)
  •  17) (i)
  •  18) (ii)
  •  19) (i)
  •  20) (v)