A.3?2
B.2?3
C.3
D.2
E.0
Show AnswerAnswer=Option B
ECAT Math
30 men can do a certain work in 15 days. They started working on the project but 5 of them leave after every five days. In how many days will the work be completed now______?
A.20 days
B.22 days
C.25 days
D.18 days
Show AnswerAnswer=Option A
M and N working separately can complete a job in 6 and 12 hours respectively. If they work for an hour alternately M starting at 10:00 AM when will the job be done______?
A.2:00 PM
B.8:00 PM
C.7:00 PM
D.6:00 PM
Show AnswerAnswer=Option D
20 men or 30 boys can do a certain job in 20 days. How long will it take 6 men and 15 boys to do the same job______?
A.25 days
B.10 days
C.8 days
D.6 days
Show AnswerAnswer=Option A
20 men can do a certain work in 60 days but after every five days five additional men join them. In how many days will work be done now______?
A.30.5 days
B.31 days
C.33.5 days
D.34.5 days
Show AnswerAnswer=Option D
Two pipes A and B can fill a tank in 14 and 21 hrs respectively. If both pipes are opened together then after how many hours A should be closed so that tank is full in 7 hours.
A.28/5 hrs
B.6.5 hrs
C.5 hrs
D.4 hrs
Show AnswerAnswer=Option A
A tank can be filled by tap A in 16 hrs and by tap B in 20 hrs. Both the taps are kept opened for 8 hrs and then A is closed. In how many more hours will the tank be completely filled______?
A.2 hrs
B.12 2?3
C.10 hrs
D.0.5 hrs
Show AnswerAnswer=Option A
A tank has a leak which would empty it in 10 hrs. A tap is turned on and it admits 9 liters per minute into the tank and tank is now emptied in 25 hrs. How many liters tank holds______?
A.9000
B.13400
C.14500
D.10000
Show AnswerAnswer=Option A
Three pipes A B and C can fill a tank in 20 hours. After working at it together for 5 hours C is closed and A and B fill it in 30 hrs. C alone can fill it in
A.35 hrs
B.40 hrs
C.30 hrs
D.28 hrs
Show AnswerAnswer=Option B
A and B can complete a task in 44 days when working together. After having worked together for 33 days B is called away. A completes the remaining task in the next 25 days. A can complete the job working alone in
A.140 days
B.90 days
C.100 days
D.84 days
Show AnswerAnswer=Option C