and left the job. In how many days, A
alone can finish the remaining work?

a) 5

b) 5

c) 6

d) 8

e) None of these

2) 4 men and 6 women can complete a
work in 8 days, while 3 men and 7 women can complete

it in 10 days. In how many days will 10
women complete it?

a) 35

b) 40

c) 45

d) 50

e) None of these

3) A and B can together finish a work
30 days. They worked together for 20 days and then B

left. After another 20 days, A finished
the remaining work. In how many days A alone can

finish the work?

a) 45

b) 50

c) 54

d) 60

e) None of these

4) P can complete a work in 12 days
working 8 hours a day. Q can complete the same work in 8

days working 10 hours a day. If both P
and Q work together, working 8 hours a day, in how

many days can they complete the work?

a) 5

b) 5

c) 6

d) 6

e) None of these

5) 10 women can complete a work in 7
days and 10 children take 14 days to complete the work.

How many days will 5 women and 10
children take to complete the work?

a) 3

b) 5

c) 7

d) Data inadequate

e) None of these

6) X and Y can do a piece of work in 20
days and 12 days respectively. X started the work alone

and then after 4 days Y joined him till
the completion of the work. How long did the work

last?

a) 6 days

b) 10 days

c) 15 days

d) 20 days

e) None of these

7) A is 30% more efficient than B. How
much time will they, working together, take to complete

a job which A alone could have done in
23 days?

a) 11 days

b) 13 days

c) 20 days

d) Data inadequate

e) None of these

8) Ravi and Kumar are working on an
assignment. Ravi takes 6 hours to type 32 pages on a

computer, while Kumar takes 5 hours to
type 40 pages. How much time will they take,

working together on two different
computers to type an assignment of 110 pages?

a) 7 hours 30 minutes

b) 8 hours

c) 8 hours 15 minutes

d) 8 hours 25 minutes

e) None of these

9) A, B and C can complete a piece of
work in 24, 6 and 12 days respectively. Working together,

they will complete the same work in:

a) 1day

b) 2day

c) 3 day

d) 4 days

e) None of these

10) Sakshi can do a piece of work in 20
days. Tanya is 25% more efficient than Sakshi. The

number of days taken by Tanya to do the
same piece of work is:

a) 15

b) 16

c) 18

d) 25

e) None of these