1.  Machine X fills 2000 bottles in 5 hours and machine Y fills 2000 bottles in 6 hours, in how many hours can machine X and Y, working together at these constant rates, fill 2000 bottles? 
a.   11/30 hrs 
b.   30/11 hrs 
c.   11/8 hrs 
d.   8/11 hrs




2.  A and B can complete stitching in 6 hours, B and C can do the same in 8 hours, while C and A can complete it in 12 hours. How long would each of them take, doing the same work, separately ? 
a.   A = 48 hours, B = 9.6 hours, C = 16 hours 
b.   A = 9.6 hours, B = 48 hours, C = 16 hours 
c.   A = 16 hours, B = 9.6 hours, C = 48 hours 
d.   A = 16 hours, B = 48 hours, C = 9.6 hours




3.  1/4th of a work is completed by 8 persons in 12 days. Find the number of persons required to complete the remaining work in 16 days. 
a.   2 
b.   3 
c.   4 
d.   1




4.  "X" can do as much work in 4 days as "Y" in 6 days. "Z" can do as much work in 2 days as "Y" can do in 1 day. What time would "Z" require to do a work if "X" takes 12 days to finish it? 
a.   12 days 
b.   36 days 
c.   24days 
d.   32 days




5.  A and B can complete a piece of work in 18 days, while A alone can complete it in 24 days. Find the time taken by B alone to complete the work. 
a.   63 days 
b.   54 days 
c.   36 days 
d.   72 days




6.  A family of 8 members have the grocery stock for a month (30 days). After 2 weeks, a family of 8 relatives arrive. For how many more days the food will last? 
a.   10 days 
b.   16 days 
c.   8 days 
d.   12 days




7.  X and Y can do a piece of work in 15 days; Y and Z can do the job in 18 days; Z and X can complete in 10 days. All of them worked together for 5 days and then X leaves. Y and Z then worked for 3 days and then Y leaves. Find how long Z would take to complete the job? 
a.   43/2 days 
b.   45/2 days 
c.   41/2 days 
d.   47/2 days




8.  A family of 8 consume grains worth of $200 for 80 days. For how long will $300 maintain a family of 12 members? 
a.   70 days 
b.   80 days 
c.   90 days 
d.   75 days




9.  If 80 men working 8 hours a day can complete a job in 20 days. Calculate in how many more days will 40 men working 10 hours a day do thrice the same work. 
a.   50 days 
b.   82 days 
c.   85 days 
d.   76 days




10.  Tony is thrice as efficient as Mony. Tony can finish a piece of work in 40 days less than Mony. In how many days, Mony can finish the work? 
a.   120 days 
b.   80 days 
c.   60 days 
d.   90 days




11.  Bruce would take 16 hours more to complete the job, individually, than working together with Berry. If Berry worked alone, she would take 9 hours more to complete the job than Bruce and Berry who worked together. What time would they take to complete the job, if both Bruce and Berry worked together? 
a.   11 hours 
b.   15 hours 
c.   12 hours 
d.   10 hours




12.  Lee and Nee can do a piece of work in 20 days. Sweety and Tweety can complete the same work in 30 days. In how many days will Lee, Nee, Sweety and Tweety do it together? 
a.   3 days 
b.   8 days 
c.   5 days 
d.   4 days



