ICSE Board Practice

ICSE Grade VIII - Ratio and Proportion
Question 1
1.
A box contains 56 pens and 84 pencils. The ratio of pencils to the total stationary items =
  • 3
    :
    7
  • 3
    :
    5
  • 3
    :
    3
  • 4
    :
    5
  • 2
    :
    5
Question 2
2.
    • If
    •  
    • A

      5
    • =
    • B

      4
    • =
    • C

      9
    • ,
    • find A : B : C
  • 4
    :
    4
    :
    9
  • 6
    :
    4
    :
    9
  • 5
    :
    1
    :
    9
  • 5
    :
    4
    :
    9
  • 5
    :
    7
    :
    9
Question 3
3.
    • The consequent in the ratio
    • 1
      :
      14
    • =
  • 14
  • 17
  • 1
  • -2
  • 13
Question 4
4.
Two numbers are in the ratio 1 : 3. If 18 is added to each number, the ratio becomes 5 : 9. Find the numbers.
  • 13
    :
    39
  • 10
    :
    30
  • 14
    :
    42
  • 11
    :
    33
  • 12
    :
    36
Question 5
5.
An office contains 780 employees of 4 types. The managers, team leaders, developers and testers are in the ratio 3 : 4 : 7 : 6. The number of managers in the office =
  • 118
  • 117
  • 115
  • 120
  • 116
Question 6
6.
Find the ratio between 9 m and 7 km
  • 9
    :
    6997
  • 9
    :
    7000
  • 9
    :
    7002
  • 8
    :
    7000
Question 7
7.
A ratio is equal to 1 : 5. If its consequent is 11550, what is its antecendent?
  • 2313
  • 2311
  • 2307
  • 2309
  • 2310
Question 8
8.
    • Find the fourth proportional of
    • 12
    • ,
    • 3
    • and
    • 16
  • 3
  • 1
  • 4
  • 7
  • 16
Question 9
9.
    • Find the product of means of
    • 5
      :
      7
    • and
    • 16
      :
      4
  • 111
  • 109
  • 112
  • 20
  • 114
Question 10
10.
    • If a : b =
    • 14
      :
      15
    • and b : c =
    • 1
      :
      3
    • ,
    • then a : b : c =
  • 14
    :
    15
    :
    45
  • 15
    :
    15
    :
    45
  • 14
    :
    17
    :
    45
  • 14
    :
    13
    :
    45
  • 13
    :
    15
    :
    45