EduSahara™ Worksheet

EduSahara™ Worksheet

Name : Chapter Based Worksheet

Chapter : Time and Work

Grade : ICSE Grade VIII

License : Non Commercial Use

Question 1

1.

A sum of
₹2009.00
will be given to do a work.

A and B can do it in
5

23
24

hr
.

How much A, B and C respectively will get if all three work together?

(i)

(

₹546

,

₹1001

,

₹462

)
(ii)

(

₹1001

,

₹546

,

₹462

)
(iii)

(

₹1001

,

₹462

,

₹546

)
(iv)

(

₹462

,

₹1001

,

₹546

)
(v)

(

₹546

,

₹462

,

₹1001

)

Question 2

2.

Pipe A can fill a tank in
9

hr
and pipe B can empty the full tank in

63

hr
.
If both the pipes are opened together,

in how much time will the tank become full?

(i)

11

1
2

hr
(ii)

10

1
4

hr
(iii)

10

1
2

hr
(iv)

11

hr
(v)

9

1
2

hr

Question 3

3.

P and Q can do together a piece of work in
4

2
3

days
.

After they have worked together for
2

days
,
P stops.

Q completes the remaining work in
4

days
.

In how many days can Q alone do the work?

(i)

9

days
(ii)

5

days
(iii)

6

days
(iv)

8

days
(v)

7

days

Question 4

4.

A can do a work in
7

days
.
With the help of B, A can do the same work in

1

5
9

days
.
In how many days can B alone do the work?

(i)

3

days
(ii)

2

days
(iii)

-1

days
(iv)

4

days
(v)

1

day

Question 5

5.

A and B can do a work in
6

days
, B and C can do in
8

days

and C and A can do in
8

days
.
If all three work together,

in how many days will the work be completed?

(i)

5

1
5

days
(ii)

4

4
7

days
(iii)

4

4
5

days
(iv)

5

1
3

days
(v)

4

2
5

days

Question 6

6.

A can do a piece of work in
8

hr
,
B can do the work in
5

hr

and C in
14

hr
respectively.
In how much time can they do it together?

(i)

2

56
111

hr
(ii)

2

20
37

hr
(iii)

2

58
113

hr
(iv)

2

58
109

hr
(v)

2

58
111

hr

Question 7

7.

A can construct
4
7
of a wall in
4

4
7

hr
.

B can construct
4
6
of the wall in
6

hr
.

C can construct
5
10
of the wall in
4

hr
.

If all three work together, in how much time will they

construct
2
7
of the wall?

(i)

74
91

hr
(ii)

24
31

hr
(iii)

72
91

hr
(iv)

10
13

hr
(v)

72
89

hr

Question 8

8.

9
men take
8

days
to complete a work.

How much work is done by one man in one day?

(i)

1
24
(ii)

1
9
(iii)

1
8
(iv)

1
72
(v)

(
-1
72
)

Question 9

9.

A sum of
₹1416.00
will be given to do a work.

A and B can do it in
6

2
3

days
.

How much A, B and C respectively will get if all three work together?

(i)

(

₹416

,

₹480

,

₹520

)
(ii)

(

₹520

,

₹480

,

₹416

)
(iii)

(

₹480

,

₹520

,

₹416

)
(iv)

(

₹480

,

₹416

,

₹520

)
(v)

(

₹416

,

₹520

,

₹480

)

Question 10

10.

A can do a piece of work in
10

days
,
B can do the work in
6

days

and C in
10

days
respectively.
In how much time can they do it together?

(i)

2

8
11

days
(ii)

2

10
11

days
(iii)

2

8
9

days
(iv)

2

6
11

days
(v)

2

8
13

days

Question 11

11.

A can do
5
10
of a work in
4

hr
.

He works for
2

hr
when B joins him.

They work together and complete the work in
3

1
3

hr
.

In how much time, B alone can do the work?

(i)

10

hr
(ii)

9

hr
(iii)

13

hr
(iv)

8

hr
(v)

11

hr

Question 12

12.

A and B can do a piece of work in
18

days
and
16

days
respectively.

They work together for
4

days
and then B leaves.

In how many days the whole work is completed?

(i)

14

days
(ii)

12

1
2

days
(iii)

13

1
2

days
(iv)

13

1
4

days
(v)

14

1
2

days

Question 13

13.

A and B can do a work in
5

days
and
8

days
respectively.

They together undertook to do a piece of work for
₹7800.00
.

What is the share of B?

(i)

₹2999.00
(ii)

₹4798.00
(iii)

₹3000.00
(iv)

₹3001.00
(v)

₹4800.00

Question 14

14.

A can do a piece of work in
14

hr
and B in
11

hr
.

A does the work for
2

hr
before B join A to work together.

Again after
3

hr
C joins both A and B to complete the work in
1

1
8

hr
.

In how much time C alone can do the work?

(i)

8

hr
(ii)

5

hr
(iii)

7

hr
(iv)

4

hr
(v)

6

hr

Question 15

15.

7
skilled men can do a work in
7

days
.

9
unskilled men can do the same work in
7

days
.

In how many days can
6
skilled and
3
unskilled men do the same work?

(i)

5

24
25

days
(ii)

5

4
5

days
(iii)

5

22
27

days
(iv)

5

22
23

days
(v)

5

22
25

days

Question 16

16.

A can do
1
8
of a work in
1

day
.

He works for
4

days
when B joins him.

They work together and complete the work in
2

2
5

days
.

In how much time, B alone can do the work?

(i)

12

days
(ii)

14

days
(iii)

9

days
(iv)

11

days
(v)

13

days

Question 17

17.

A, B and C can together do a piece of work in
2

2
59

days
.

B and C can do it in
2

8
11

days
.

C alone can do it in
6

days
.

In how much time A and C can do the work together?

(i)

3

1
7

days
(ii)

3

3
5

days
(iii)

3

5
7

days
(iv)

3

1
3

days
(v)

3

3
7

days

Question 18

18.

A and B can do a work in
17

days
and
10

days
respectively.

If they work on alternate days and A begins the work,

in how many days can it be completed?

(i)

14

days
(ii)

12

days
(iii)

11

days
(iv)

13

days
(v)

15

days

Question 19

19.

A, B, C, D, and E can do a piece of work in

Who has the greatest capacity to do work?

(i)

C
(ii)

B
(iii)

A
(iv)

E
(v)

D

Question 20

20.

Person P is
nine times
as good a workman as Person Q.

They can do a work together in
1

4
5

days
.

In how many days Q alone can do the work?

(i)

20

days
(ii)

15

days
(iii)

19

days
(iv)

17

days
(v)

18

days

Question 21

21.

Due to a leak at the bottom, pipe Y takes
2

1
4

hr
to fill the tank.

The leak alone can empty the full tank in
18

hr
.

In what time can pipe Y alone fill the tank when the leak is closed?

(i)

2

hr
(ii)

3

hr
(iii)

1

hr
(iv)

0

hr
(v)

5

hr

Question 22

22.

A can do a work in
6

days
and B can do the same work in
6

days
.

If they work together, in how much time is the work completed?

(i)

5

days
(ii)

2

days
(iii)

4

days
(iv)

3

days
(v)

1

day

Question 23

23.

A can construct
4
5
of a wall in
5

3
5

days
.

B can construct
3
10
of the wall in
2

2
5

days
.

C can construct
9
10
of the wall in
4

1
2

days
.

If all three work together, in how much time will they

construct
4
5
of the wall?

(i)

1

91
131

days
(ii)

1

93
133

days
(iii)

1

31
43

days
(iv)

1

93
131

days
(v)

1

95
131

days

Question 24

24.

In how many days can
13
men do the same work, working
4
hours a day?

(i)

34

8
15

days
(ii)

34

6
13

days
(iii)

34

8
13

days
(iv)

34

8
11

days
(v)

34

10
13

days

Question 25

25.

opened together and after some time the first pipe is closed and the tank

becomes full in
22

1
2

min
from the time when both pipes are opened.
For how much time was first pipe open?

(i)

0

min
(ii)

2

min
(iii)

-2

min
(iv)

4

min
(v)

1

min

Assignment Key