EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Time and Work
Grade : ICSE Grade VII
License : Non Commercial Use
Question
1
1.
A can do a piece of work in
13
days
,
B can do the work in
6
days
and C in
11
days
respectively.
In how much time can they do it together?
(i)
2
284
285
days
(ii)
2
284
287
days
(iii)
2
286
287
days
(iv)
2
282
287
days
(v)
2
284
289
days
Question
2
2.
A and B can do a work in
8
days
and
3
days
respectively.
They together undertook to do a piece of work for
₹7700.00
.
What is the share of B?
(i)
₹5601.00
(ii)
₹5600.00
(iii)
₹5599.00
(iv)
₹2100.00
(v)
₹2098.00
Question
3
3.
Two pipes can fill a tank in
7
min
and
17
min
respectively.
Both pipes are
opened together and after some time the first pipe is closed and the tank
becomes full in
9
5
7
min
from the time when both pipes are opened.
For how much time was first pipe open?
(i)
6
min
(ii)
2
min
(iii)
3
min
(iv)
1
min
(v)
4
min
Question
4
4.
A sum of
₹408.00
will be given to do a work.
A and B can do it in
4
14
19
hr
.
B and C can do in
3
3
5
hr
.
C and A can do in
3
3
4
hr
.
How much A, B and C respectively will get if all three work together?
(i)
(
₹108
,
₹180
,
₹120
)
(ii)
(
₹120
,
₹180
,
₹108
)
(iii)
(
₹180
,
₹120
,
₹108
)
(iv)
(
₹180
,
₹108
,
₹120
)
(v)
(
₹108
,
₹120
,
₹180
)
Question
5
5.
A certain number of men can do a work in
45
days
.
If there were
12
men
less
,
it would take
18
days
more
to complete the work.
How many men are required to complete the work in
35
days
?
(i)
55
(ii)
56
(iii)
54
(iv)
53
(v)
52
Question
6
6.
4
skilled men can do a work in
8
days
.
7
unskilled men can do the same work in
6
days
.
In how many days can
3
skilled and
5
unskilled men do the same work?
(i)
4
102
143
days
(ii)
4
98
143
days
(iii)
4
20
29
days
(iv)
4
100
143
days
(v)
4
100
141
days
Question
7
7.
A sum of
₹745.00
will be given to do a work.
A and B can do it in
3
9
17
days
.
B and C can do in
6
6
13
days
.
C and A can do in
3
13
19
days
.
How much A, B and C respectively will get if all three work together?
(i)
(
₹175
,
₹150
,
₹420
)
(ii)
(
₹420
,
₹150
,
₹175
)
(iii)
(
₹420
,
₹175
,
₹150
)
(iv)
(
₹150
,
₹420
,
₹175
)
(v)
(
₹150
,
₹175
,
₹420
)
Question
8
8.
A and B can do a work in
7
7
29
days
,
B and C can do it in
6
days
and C and A can do it in
5
5
6
days
.
In how much time can
each of them do it seperately?
(i)
(
14
days
,
16
days
,
10
days
)
(ii)
(
14
days
,
15
days
,
10
days
)
(iii)
(
14
days
,
15
days
,
11
days
)
(iv)
(
15
days
,
15
days
,
10
days
)
(v)
(
15
days
,
16
days
,
10
days
)
Question
9
9.
A, B, C, D, and E can do a piece of work in
8
days
,
6
days
,
9
days
,
13
days
and
15
days
respectively.
Who has the greatest capacity to do work?
(i)
D
(ii)
B
(iii)
E
(iv)
C
(v)
A
Question
10
10.
14
men can do a work in
17
days working
5
hours a day.
In how many days can
14
men do the same work, working
3
hours a day?
(i)
29
days
(ii)
28
1
3
days
(iii)
27
2
3
days
(iv)
28
1
5
days
Question
11
11.
A can do a work in
9
days
.
With the help of B, A can do the same work in
4
4
17
days
.
In how many days can B alone do the work?
(i)
8
days
(ii)
7
days
(iii)
5
days
(iv)
11
days
(v)
9
days
Question
12
12.
A, B and C together can do a work in
3
4
days
.
If A and C can do the work in
2
days
and
3
days
respectively,
in how many days can B alone do the work?
(i)
1
day
(ii)
4
days
(iii)
3
days
(iv)
-1
days
(v)
2
days
Question
13
13.
A can do
2
5
of a work in
2
4
5
hr
.
He works for
2
hr
when B joins him.
They work together and complete the work in
3
1
18
hr
.
In how much time, B alone can do the work?
(i)
9
hr
(ii)
12
hr
(iii)
11
hr
(iv)
14
hr
(v)
10
hr
Question
14
14.
Due to a leak at the bottom, pipe Y takes
9
3
5
hr
to fill the tank.
The leak alone can empty the full tank in
48
hr
.
In what time can pipe Y alone fill the tank when the leak is closed?
(i)
7
hr
(ii)
9
hr
(iii)
10
hr
(iv)
8
hr
(v)
5
hr
Question
15
15.
Pipe A can fill a tank in
8
hr
and pipe B can empty the full tank in
48
hr
.
If both the pipes are opened together,
in how much time will the tank become full?
(i)
9
3
5
hr
(ii)
10
hr
(iii)
9
1
5
hr
(iv)
9
3
7
hr
Question
16
16.
5
men take
9
days
to complete a work.
How much work is done by one man in one day?
(i)
1
5
(ii)
1
15
(iii)
(
-1
45
)
(iv)
1
45
(v)
1
9
Question
17
17.
A and B can do a work in
5
7
22
hr
,
B and C can do it in
5
7
22
hr
and C and A can do it in
4
1
2
hr
.
In how much time can
each of them do it seperately?
(i)
(
9
hr
,
13
hr
,
9
hr
)
(ii)
(
9
hr
,
13
hr
,
10
hr
)
(iii)
(
10
hr
,
13
hr
,
9
hr
)
(iv)
(
9
hr
,
14
hr
,
9
hr
)
(v)
(
10
hr
,
14
hr
,
9
hr
)
Question
18
18.
A and B together can do a piece of work in
3
11
15
hr
.
They work together for
1
hr
and then A leaves.
B completes the remaining work in
5
1
8
hr
.
In how much time can each of them do the work seperately?
(i)
(
8
hr
,
6
hr
)
(ii)
(
9
hr
,
7
hr
)
(iii)
(
8
hr
,
8
hr
)
(iv)
(
8
hr
,
7
hr
)
(v)
(
7
hr
,
7
hr
)
Question
19
19.
A, B, C, D, and E can do a piece of work in
11
hr
,
13
hr
,
9
hr
,
8
hr
and
7
hr
respectively.
Who has the greatest capacity to do work?
(i)
B
(ii)
D
(iii)
E
(iv)
A
(v)
C
Question
20
20.
A can do a work in
2
days
and B can do the same work in
3
days
.
If they work together, in how much time is the work completed?
(i)
1
1
5
days
(ii)
1
1
3
days
(iii)
1
3
5
days
(iv)
1
1
7
days
(v)
4
5
days
Question
21
21.
A and B can do a work in
7
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
9
days
(ii)
4
10
11
days
(iii)
5
3
11
days
(iv)
5
1
11
days
(v)
5
1
13
days
Question
22
22.
A and B together can do a piece of work in
3
3
13
days
.
They work together for
1
day
and then A leaves.
B completes the remaining work in
4
5
6
days
.
In how much time can each of them do the work seperately?
(i)
(
7
days
,
7
days
)
(ii)
(
6
days
,
8
days
)
(iii)
(
5
days
,
7
days
)
(iv)
(
6
days
,
7
days
)
(v)
(
6
days
,
6
days
)
Question
23
23.
P and Q can do together a piece of work in
3
3
5
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)
8
days
(ii)
9
days
(iii)
12
days
(iv)
10
days
(v)
6
days
Question
24
24.
A can do a piece of work in
9
hr
,
B can do the work in
7
hr
and C in
14
hr
respectively.
In how much time can they do it together?
(i)
3
5
41
hr
(ii)
3
1
13
hr
(iii)
3
3
43
hr
(iv)
3
3
41
hr
(v)
3
1
41
hr
Question
25
25.
A and B can do a piece of work in
20
days
and
15
days
respectively.
They work together for
4
days
and then B leaves.
In how many days the whole work is completed?
(i)
14
2
3
days
(ii)
16
days
(iii)
15
1
3
days
(iv)
14
days
(v)
14
2
5
days
Assignment Key
1) (ii)
2) (ii)
3) (iii)
4) (v)
5) (iii)
6) (iv)
7) (iii)
8) (ii)
9) (ii)
10) (ii)
11) (i)
12) (v)
13) (iii)
14) (iv)
15) (i)
16) (iv)
17) (i)
18) (iv)
19) (iii)
20) (i)
21) (iv)
22) (iv)
23) (ii)
24) (iv)
25) (i)
