ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade VIII - Time and Work
Question 1
1.
    • A can do a piece of work in
    • 11
      hr
    • and B in
    • 11
      hr
    • .
    • A does the work for
    • 5
      hr
    • before B join A to work together.
    • Again after
    • 2
      hr
    • C joins both A and B to complete the work in
    • 16
      27
      hr
    • .
    • In how much time C alone can do the work?
  • 7
    hr
  • 6
    hr
  • 11
    hr
  • 9
    hr
  • 8
    hr
Question 2
2.
    • A sum of
    • ₹175.00
    • will be given to do a work.
    • A and B can do it in
    • 6
      hr
    • .
    • B and C can do in
    • 4
      14
      19
      hr
    • .
    • C and A can do in
    • 5
      5
      8
      hr
    • .
    • How much A, B and C respectively will get if all three work together?
  • (
    ₹42
    ,
    ₹70
    ,
    ₹63
    )
  • (
    ₹70
    ,
    ₹42
    ,
    ₹63
    )
  • (
    ₹42
    ,
    ₹63
    ,
    ₹70
    )
  • (
    ₹70
    ,
    ₹63
    ,
    ₹42
    )
  • (
    ₹63
    ,
    ₹70
    ,
    ₹42
    )
Question 3
3.
    • A and B can do a piece of work in
    • 15
      days
    • and
    • 11
      days
    • respectively.
    • They work together for
    • 5
      days
    • and then B leaves.
    • In how many days the whole work is completed?
  • 8
    4
    11
    days
  • 8
    days
  • 8
    2
    9
    days
  • 8
    2
    13
    days
  • 8
    2
    11
    days
Question 4
4.
    • Due to a leak at the bottom, pipe Y takes
    • 2
      1
      3
      hr
    • to fill the tank.
    • The leak alone can empty the full tank in
    • 14
      hr
    • .
    • In what time can pipe Y alone fill the tank when the leak is closed?
  • 5
    hr
  • 3
    hr
  • 1
    hr
  • 2
    hr
  • -1
    hr
Question 5
5.
    • A sum of
    • ₹189.00
    • will be given to do a work.
    • A and B can do it in
    • 4
      1
      5
      days
    • .
    • B and C can do in
    • 4
      days
    • .
    • C and A can do in
    • 6
      6
      13
      days
    • .
    • How much A, B and C respectively will get if all three work together?
  • (
    ₹98
    ,
    ₹49
    ,
    ₹42
    )
  • (
    ₹49
    ,
    ₹98
    ,
    ₹42
    )
  • (
    ₹49
    ,
    ₹42
    ,
    ₹98
    )
  • (
    ₹42
    ,
    ₹49
    ,
    ₹98
    )
  • (
    ₹42
    ,
    ₹98
    ,
    ₹49
    )
Question 6
6.
    • A can do a piece of work in
    • 5
      days
    • ,
    • B can do the work in
    • 12
      days
    • and C in
    • 14
      days
    • respectively.
    • In how much time can they do it together?
  • 2
    122
    149
    days
  • 2
    120
    149
    days
  • 2
    122
    147
    days
  • 2
    122
    151
    days
  • 2
    124
    149
    days
Question 7
7.
    • A can do a piece of work in
    • 15
      hr
    • ,
    • B can do the work in
    • 5
      hr
    • and C in
    • 10
      hr
    • respectively.
    • In how much time can they do it together?
  • 2
    8
    11
    hr
  • 2
    8
    9
    hr
  • 2
    8
    13
    hr
  • 2
    6
    11
    hr
  • 2
    10
    11
    hr
Question 8
8.
    • A, B, C, D, and E can do a piece of work in
    • 9
      days
    • ,
    • 6
      days
    • ,
    • 7
      days
    • ,
    • 14
      days
    • and
    • 12
      days
    • respectively.
    • Who has the greatest capacity to do work?
  • A
  • B
  • D
  • E
  • C
Question 9
9.
    • A can do
    • 1
      5
    • of a work in
    • 1
      2
      5
      days
    • .
    • He works for
    • 2
      days
    • when B joins him.
    • They work together and complete the work in
    • 2
      4
      13
      days
    • .
    • In how much time, B alone can do the work?
  • 3
    days
  • 5
    days
  • 8
    days
  • 7
    days
  • 6
    days
Question 10
10.
    • A, B and C can together do a piece of work in
    • 2
      2
      5
      days
    • .
    • B and C can do it in
    • 3
      3
      7
      days
    • .
    • C alone can do it in
    • 6
      days
    • .
    • In how much time A and C can do the work together?
  • 3
    3
    5
    days
  • 3
    1
    3
    days
  • 3
    3
    7
    days
  • 3
    5
    7
    days
  • 3
    1
    7
    days