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
       
       
      120 5
       
    • =
  • (i)
    10
  • (ii)
    11
  • (iii)
    13
  • (iv)
    9
  • (v)
    7
Question 2
2.
    • If
      • log 2 = 0.3010,
      • log 3 = 0.4771,
      • log 5 = 0.6989,
      • log 7 = 0.8451,
    • the characteristic of
    • log
       
       
      108 79
       
    • =
  • (i)
    160
  • (ii)
    162
  • (iii)
    159
  • (iv)
    161
  • (v)
    158
Question 3
3.
    • If
      • log 2 = 0.3010,
      • log 3 = 0.4771,
      • log 5 = 0.6989,
      • log 7 = 0.8451,
    • the mantissa of
    • log
       
       
      400 45
       
    • =
  • (i)
    8.081
  • (ii)
    0.081
  • (iii)
    1.081
  • (iv)
    2.081
  • (v)
    7.081
Question 4
4.
    • If
      • log 2 = 0.3010,
      • log 3 = 0.4771,
      • log 5 = 0.6989,
      • log 7 = 0.8451,
    • the value of
    • log
       
       
      210 44
       
    • is
  • (i)
    101.1724
  • (ii)
    104.1724
  • (iii)
    102.1724
  • (iv)
    103.1724
  • (v)
    100.1724
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
    • 2400 30
       
    • is
  • (i)
    102
  • (ii)
    101
  • (iii)
    105
  • (iv)
    99
  • (v)
    103
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 43
       
      441 3
       
    • is
  • (i)
    7.0876
  • (ii)
    2.0876
  • (iii)
    0.0876
  • (iv)
    8.0876
  • (v)
    1.0876
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
      1.0000
    • is
  • (i)
    2
  • (ii)
    8
  • (iii)
    7
  • (iv)
    1
  • (v)
    -0
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
      960

      640
    • is
  • (i)
    0.1761
  • (ii)
    8.1761
  • (iii)
    2.1761
  • (iv)
    7.1761
  • (v)
    1.1761
Question 9
9.
    • If
      • log 2 = 0.3010,
      • log 3 = 0.4771,
      • log 5 = 0.6989,
      • log 7 = 0.8451,
    • the value of
    • log
       
       
      448 77
       
    • is
  • (i)
    206.1347
  • (ii)
    205.1347
  • (iii)
    203.1347
  • (iv)
    202.1347
  • (v)
    204.1347
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
    • 3840 4
       
    • is
  • (i)
    12
  • (ii)
    18
  • (iii)
    15
  • (iv)
    14
  • (v)
    16
Question 11
11.
    • log
       
      14 13
       
      14 43
       
    • =
  • (i)
    4.3077
  • (ii)
    5.3077
  • (iii)
    2.3077
  • (iv)
    3.3077
  • (v)
    1.3077
Question 12
12.
    • If
      • log 2 = 0.3010,
      • log 3 = 0.4771,
      • log 5 = 0.6989,
      • log 7 = 0.8451,
    • the value of
    • log
       
      200 36
       
      360 16
       
    • is
  • (i)
    1.4938
  • (ii)
    2.4938
  • (iii)
    7.4938
  • (iv)
    0.4938
  • (v)
    8.4938
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
      1.0800
    • is
  • (i)
    0.033
  • (ii)
    8.033
  • (iii)
    2.033
  • (iv)
    1.033
  • (v)
    7.033
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
      1008

      768
    • is
  • (i)
    8.1182
  • (ii)
    2.1182
  • (iii)
    0.1182
  • (iv)
    7.1182
  • (v)
    1.1182
Question 15
15.
    • If
      • log 2 = 0.3010,
      • log 3 = 0.4771,
      • log 5 = 0.6989,
      • log 7 = 0.8451,
    • the value of
    • log
       
       
      336 80
       
    • is
  • (i)
    201.096
  • (ii)
    202.096
  • (iii)
    203.096
  • (iv)
    200.096
  • (v)
    204.096
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
    • 6912 24
       
    • is
  • (i)
    92
  • (ii)
    93
  • (iii)
    90
  • (iv)
    94
  • (v)
    95
Question 17
17.
    • log
       
      48 13
       
      48 26
       
    • =
  • (i)
    1
  • (ii)
    3
  • (iii)
    4
  • (iv)
    0
  • (v)
    2
Question 18
18.
    • If
      • log 2 = 0.3010,
      • log 3 = 0.4771,
      • log 5 = 0.6989,
      • log 7 = 0.8451,
    • the value of
    • log
       
      280 11
       
      576 8
       
    • is
  • (i)
    0.8204
  • (ii)
    7.8204
  • (iii)
    8.8204
  • (iv)
    2.8204
  • (v)
    1.8204
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
      1.2800
    • is
  • (i)
    0.107
  • (ii)
    1.107
  • (iii)
    8.107
  • (iv)
    2.107
  • (v)
    7.107
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
      2160

      972
    • is
  • (i)
    2.3467
  • (ii)
    1.3467
  • (iii)
    0.3467
  • (iv)
    8.3467
  • (v)
    7.3467
    Assignment Key

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