ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade VIII - Time and Work
Question 1
1.
    • Person P is
    • twice
    • as good a workman as Person Q.
    • They can do a work together in
    • 5
      1
      3
      days
    • .
    • In how many days Q alone can do the work?
  • 13
    days
  • 15
    days
  • 17
    days
  • 19
    days
  • 16
    days
Question 2
2.
    • A, B, C, D, and E can do a piece of work in
    • 12
      hr
    • ,
    • 13
      hr
    • ,
    • 14
      hr
    • ,
    • 15
      hr
    • and
    • 6
      hr
    • respectively.
    • Who has the greatest capacity to do work?
  • D
  • C
  • A
  • E
  • B
Question 3
3.
    • A and B can do a work in
    • 4
      4
      17
      days
    • ,
    • B and C can do it in
    • 5
      11
      23
      days
    • and C and A can do it in
    • 5
      1
      11
      days
    • .
    • In how much time can
    • each of them do it seperately?
  • (
    8
    days
    ,
    9
    days
    ,
    14
    days
    )
  • (
    9
    days
    ,
    10
    days
    ,
    14
    days
    )
  • (
    9
    days
    ,
    9
    days
    ,
    14
    days
    )
  • (
    8
    days
    ,
    10
    days
    ,
    14
    days
    )
  • (
    8
    days
    ,
    9
    days
    ,
    15
    days
    )
Question 4
4.
    • A can do
    • 4
      5
    • of a work in
    • 12
      hr
    • .
    • He works for
    • 2
      hr
    • when B joins him.
    • They work together and complete the work in
    • 4
      3
      22
      hr
    • .
    • In how much time, B alone can do the work?
  • 5
    hr
  • 7
    hr
  • 10
    hr
  • 8
    hr
  • 6
    hr
Question 5
5.
    • 6
    • skilled men can do a work in
    • 3
      days
    • .
    • 6
    • unskilled men can do the same work in
    • 9
      days
    • .
    • In how many days can
    • 9
    • skilled and
    • 4
    • unskilled men do the same work?
  • 1
    23
    29
    days
  • 1
    23
    31
    days
  • 1
    21
    31
    days
  • 1
    25
    31
    days
  • 1
    23
    33
    days
Question 6
6.
    • A and B together can do a piece of work in
    • 3
      3
      5
      hr
    • .
    • They work together for
    • 1
      hr
    • and then A leaves.
    • B completes the remaining work in
    • 4
      1
      3
      hr
    • .
    • In how much time can each of them do the work seperately?
  • (
    10
    hr
    ,
    6
    hr
    )
  • (
    9
    hr
    ,
    5
    hr
    )
  • (
    9
    hr
    ,
    7
    hr
    )
  • (
    9
    hr
    ,
    6
    hr
    )
  • (
    8
    hr
    ,
    6
    hr
    )
Question 7
7.
    • A, B and C together can do a work in
    • 1
      3
      7
      days
    • .
    • If A and C can do the work in
    • 4
      days
    • and
    • 4
      days
    • respectively,
    • in how many days can B alone do the work?
  • 5
    days
  • 2
    days
  • 4
    days
  • 6
    days
  • 7
    days
Question 8
8.
    • A and B can do a work in
    • 7
      7
      29
      hr
    • ,
    • B and C can do it in
    • 5
      5
      8
      hr
    • and C and A can do it in
    • 5
      11
      23
      hr
    • .
    • In how much time can
    • each of them do it seperately?
  • (
    14
    hr
    ,
    15
    hr
    ,
    10
    hr
    )
  • (
    15
    hr
    ,
    15
    hr
    ,
    9
    hr
    )
  • (
    15
    hr
    ,
    16
    hr
    ,
    9
    hr
    )
  • (
    14
    hr
    ,
    16
    hr
    ,
    9
    hr
    )
  • (
    14
    hr
    ,
    15
    hr
    ,
    9
    hr
    )
Question 9
9.
    • 5
    • men and
    • 3
    • women can do a piece of work in
    • 20
    • days.
    • 3
    • men and
    • 25
    • women can do the same work in
    • 8
    • days.
    • In how many days can
    • 2
    • men and
    • 4
    • women complete the same work?
  • 31
    59
    73
    days
  • 31
    57
    73
    days
  • 31
    19
    25
    days
  • 31
    55
    73
    days
  • 31
    57
    71
    days
Question 10
10.
    • A and B can do a work in
    • 6
      days
    • , B and C can do in
    • 6
      days
    • and C and A can do in
    • 8
      days
    • .
    • If all three work together,
    • in how many days will the work be completed?
  • 4
    4
    9
    days
  • 4
    6
    11
    days
  • 4
    4
    11
    days
  • 4
    2
    11
    days
  • 4
    4
    13
    days