1.  A husband and wife, started painting their house, but husband left painting 5 days before the completion of the work. How many days will it take to complete the work, which the husband alone would have completed in 20 days and wife in 15 days? 
a.   40/7 days 
b.   50/7 days 
c.   75/7 days 
d.   55/7 days


2.  X, Y and Z can finish painting a wall in 8, 10 and 12 hours, respectively. How many hours will all of them take to complete painting, working together? 
a.   130/29 hours 
b.   102/35 hours 
c.   120/37 hours 
d.   103/28 hours


3.  10 men and 15 women can do a piece of work in 30 days, Calculate in how many days can the work be done by 12 men and 27 women working together? 
a.   8 days 
b.   18 days 
c.   15 days 
d.   10 days


4.  15 women can knit 6 sweaters in 20 days working 6 hours a day. Find in how many days can 20 women knit 10 sweaters working 3 hours a day? 
a.   10 days 
b.   12 days 
c.   18 days 
d.   15 days


5.  'X' men were supposed to complete a piece of work in 20 days. 5 amongst them went absent and the remaining men did the job in 30 days. Find a figure from the following that can replace 'X' ? 
a.   20 
b.   16 
c.   18 
d.   14 

6.  'X' can do 2/3 of a work in 10 days and 'Y' can do 1/4 of the work in 5 days. Find in how many days can X and Y both together complete the work? 
a.   60/7 days 
b.   50/7 days 
c.   80/7 days 
d.   40/7 days


7.  A tower was built by 1500 men in 30 days. In how many days can 1800 men build the same tower, if their working hours per day are reduced in the ratio 3:4? 
a.   30 days 
b.   33.33 days 
c.   35 days 
d.   34.34 days


8.  A group of boys can clean their hostel in 8 hours. But the warden sends 5 of them to the market and the work is completed in 12 hours. Find the original number of boys in the group. 
a.   15 
b.   10 
c.   12 
d.   14


9.  If 4 men and 6 women take 8 hours to cook food for 18 army men, how long will 4 men and 8 women take to cook for the same number of army men. 
a.   4 hours 
b.   2 hours 
c.   3 hours 
d.   5 hours


10.  'X' can complete a piece of work in 45 days. He worked on it for 15 days and then 'Y' finished it in 20 days. In how many days can X and Y, together finish the work? 
a.   18 days 
b.   20 days 
c.   22 days 
d.   21 days


11.  Lily can complete a work in 32 days and Mily can do it in 40 days. Both of them started the work together. After 8 days Mily left the work. Calculate in how many more days will the work be finished? 
a.   82/3 days 
b.   85/4 days 
c.   80/3 days 
d.   88/5 days 

12.  K is twice as good in cutting trees as L and hence he finishes a piece of work in 20 days less than L. Find the time taken to complete the work, when both K and L work together. 
a.   40/3 days 
b.   41/3 days 
c.   42/5 days 
d.   43/5 days


13.  'K' and 'L' can complete a piece of work in 12 days, 'L' and 'N' can do it in 18 days. If 'L' alone takes 30 days to complete the work. Find in what time 'K' and 'N' will do it together? 
a.   13. 666 days 
b.   13.3 days 
c.   13.84 days 
d.   13. 6565 days


14.  Krish and Karen together can complete a piece of work in 15 days. If Krish does thrice as much work as Karen in a given time. Find how much time Krish will take, when working alone? 
a.   20 days 
b.   18 days 
c.   30 days 
d.   25 days


15.  A and B together can do piece of work in 30 days.A having worked for 16 days,B finishes the remaining work alone in 44 days. In how many days shall B finish the whole work alone? 
a.   30 days 
b.   40 days 
c.   60 days 
d.   70 days 
