Time and Work-Test 1

A completes 40% of a task in 10 days and then takes the help of B and C. B is 50% as
efficient as A is and C is 50% as efficient as B is. In how many more days will they complete the work?

Jeni can do a job in 30 days, Nove in 45 days and Joel in 60 days. If Jeni is helped by
Nove and Joel every 3rd day, how long will it take for them to complete the job?

Ram and Ravi can do a job together in 8 days. Ram is 11/8 times as efficient as Ravi.
The same job can be done by Ravi alone in

The work done by a woman in 8 hours is equal to the work done by a man in 6 hours
and by a boy in 12 hours. If working 6 hours per day 9 men can complete a work in 6
days then in how many days can 12 men, 12 women and 12 boys together finish the same
work working 8 hours per day?

M and N can do a piece of work in 30 days, while N and O can do the same work
in 24 days and O and M in 20 days. They all work together for 10 days when N and O
leave. How many days more will M take to finish the work?

6 men can do a piece of work in 2 hours, which 3 women could do in 3 hours, or 5
children in 4 hours. How long would 1 man, 1 woman and 1 child together take to do the
work?

A, B and C can all together do piece of work in 20 days, in which B takes twice as
long as A and C together do the work and C takes twice as long as A and B together take
to do the work. In how many days B can alone do the work?

A typing work is done by three person P, Q and R. P alone takes 20 hours to type a
single booklet but Q and R working together takes 5 hours, for the completion of the
same booklet. If all of them worked together and completed 15 booklets, then how many
hours have they worked?

Efficiency of A is 25% more then B and B takes 25 days to complete a piece of work. A
started a work alone and then B joined her 5 days before actual completion of the work.
For how many days A worked alone?

A project manager hired 15 men to complete a project in 40 days. However,
after 30 days, he realized that only 1/2 of the work is completed. How many more men
does he need to hire to complete the project on time?

20 Men can complete a work in 12 days and 24 Boys can complete same work in
20 days. 16 men and 8 boys started working and worked for 12 days. How many more days are needed to complete the work?

A and B each working alone can do a work in 12 and 36 days respectively.
They started the work together but A left after sometime and B finished the
remaining work in 4 days. After how many days from the start did A leave?

A man ‘A’ can do a piece of work in 10 days, man ‘B’ can do the same piece of work in 12 days while man ‘C’ can do it in 15 days. They started work together but after 2 days ‘A’ left the work and the remaining work was completed by ‘B’ and ‘C’ together. Find in how many days will the work be completed.

An empty tank whose capacity is 50 liters. There is an inlet pipe which fills at
7 L/min and there is an outlet pipe which empties at 6L/min. Both the pipes
function alternately for 1 minute. The inlet pipe is the first one to function, how
much time will it take for the tank to be filled up to its capacity?

There are three pipes, A, B and C, attached to container. A and B can fill the
container alone in 20 and 30 mins, respectively whereas C can empty the
container alone in 45 mins. The three pipes are kept opened alone for one
minute each in the the order A, B and C. The same order is followed subsequently.
In how many minutes will the reservoir be full?

Efficiency of A is 50% more than B and B takes 21 days to complete a piece of
work. A started the work alone and then B joined her 5 days before actual
completion of the work. For how many days A worked alone?

M can do a piece of work in 10 days working 10 hours a day. The work is
started by M and on the second day one man whose capacity to do the work is
twice that of M, joined. On the third day another man whose capacity is thrice that
of M, joined and the process continues till the work is completed. In how many
days will the work be completed, if everyone works for five hours a day?

A tent can be built by a certain number of workers in 20 days. But it requires less
than 20 workers to build it in 30 days. How many workers will build it in 50 days?

A can do a particular work in 6 days . B can do the same work in 8 days. A and B
signed to do it for Rs. 4000. They completed the work in 3 days with the help of C. How much is to be paid to C?

Ram and Ravi can separately do a piece of work in 20 and 15 days respectively.
They worked together for 6 days, after which Ravi was replaced by Rohit. If the
work was finished in next 4 days, then the number of days in which Rohit alone
could do the work will be :

A can do a work in 25 days which B alone can do in 20 days. A started the work and was joined by B after 10 days . Find the number of days taken in completing the work ?

6 men of the first group do (2/3) of the work in (1/3) times compared to 4 men of
the second group, find the respective ratio for one day of 2 men of the first group
and 4 men of the second group?

Aman is thrice as efficient as Bikash. Aman started the work and worked for 6
days then he is replaced by Bikash , he worked for 9 more days and they together finish 50% of the work. Find in how many days Bikash completed the work?

A, B and C can complete a piece of work in 10, 12 and 15 days resp.A left the work
5 days before the completion of the work B left two days after A had left the
work. Find the number of days required to complete the work?

A can do a work in 12 days when he had worked for 3 days B joined him if they
complete the work in 3 more days. In how many days can B alone finish the work.