Que- A tap can fill a tank in 32 min. and another can empty it in 16 min. If the tank is already half full and both the tanks are opened together, the tank will be_________?

a. 12 min

b. 14 min

c. 16 min

d. 20 min

Answer- 16 min

Que- A and B can do a piece of work in 12 days; B and C in 15 days; C and A in 20 days. A alone can do the work in__________?

a. 20 days

b. 30 days

c. 40 days

d. none of these

Answer- 30 days

Que- Twelve men can do a work in twenty days while twenty women can finish the same work in sixteen days. Find the ratio between the capacity of a man and a woman.

a. 31-Dec-1899

b. 31-Dec-1899

c. 31-Dec-1899

d. 31-Dec-1899

Answer- 31-Dec-1899

Que- A can lay a railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only. Then, C alone can do the job in_________?

a. 4.0

b. 9.6

c. 9.0

d. 10.0

Answer- 9.6

Que- If 10 bulls can plough 20 identical fields in 3 days working 10 hours a day, then in how many days can 30 bulls plough 32 same identical fields working 8 hours a day?

a. 2.0

b. 8.0

c. 10.0

d. 12.0

Answer- 2.0

Que- A work can be finished in 16 days by twenty women. The same work can be finished in fifteen days by sixteen men. The ratio between the capacity of a man and a woman is_________?

a. 31-Dec-1899

b. 31-Dec-1899

c. 31-Dec-1899

d. 31-Dec-1899

Answer- 31-Dec-1899

Que- P, Q and R can complete a work in 24, 6 and 12 days respectively. The work will be completed in________days if all of them are working together.

a. 2.0

b. 3 3⁄7

c. 4 ¼

d. 5.0

Answer- 3 3⁄7

Que- Two pipes P and Q can fill a cistern in 12 minutes and 16 minutes respectively. Simultaneously both the pipes are opened together, then after how much time Q should be closed so that the tank is full in 9 min ?

a. 2 min

b. 3 min

c. 4 min

d. 5 min

Answer- 4 min

Que- A can do a certain job in 12 days. B is 60% more efficient than A. The number of days it takes for B to do the same piece of work, is:_________?

a. 12/6 days

b. 15/2 days

c. 23 days

d. 34 days

Answer- 15/2 days

Que- A can do piece of work in 30 days while B can do it in 40 days. In how many days can A and B working together do it ?

a. 70 days

b. 120/7 days

c. 50 days

d. 45 days

Answer- 120/7 days

Que- A and B can do a piece of work in 21 and 24 days respectively.They start the work together and after some days, A leaves and B completes the rest of the task in 9 days. After how many days did A leave?

a. 5.0

b. 6.0

c. 7.0

d. 8.0

Answer- 7.0

Que- A,B,C, can do a work in 8,14,16 days respectively. A does the work for the first 2 days. B continues from it and finishes 2/3rd of the remaining work. C finishes the remaining work. How many days would have taken to complete the work?

a. 13.0

b. 11.0

c. 12.0

d. 15.0

Answer- 13.0

Que- If 6 men working together can complete 50 identical tasks in 4 hours then how many such identical tasks can be completed if 10 men are working together for 6 hours?

a. 20.0

b. 25.0

c. 125.0

d. 60.0

Answer- 125.0

Que- P works twice as fast as Q. If Q alone can complete a work in 12 days, P and Q can finish the work in________days

a. 1.0

b. 2.0

c. 3.0

d. 4.0

Answer- 4.0

Que- P is 30% more efficient than Q. P can complete a work in 23 days. If P and Q work together, how much time will it take to complete the same work?

a. 9.0

b. 11.0

c. 23.0

d. 13.0

Answer- 13.0

Que- 6 men and 8 women can complete a work in 10 days. 26 men and 48 women can finish the same work in 2 days. 15 men and 20 women can do the same work in_______days.

a. 4 days

b. 6 days

c. 2 days

d. 8 days

Answer- 4 days

Que- A cistern has two taps which fill it in 12 min. and 15 min.respectively There is one outlet pipe in the cistern. When all the taps & pipe are opened, the empty cistern is full in 20 min. How long will the waste pipe (outlet) take to empty the full cistern ?

a. 10 min

b. 20 min

c. 30 min

d. 40 min

Answer- 10 min

Que- To fill a cistern, pipes P, Q & R take 20, 15 & 12 minutes respectively. The time in minutes that the three pipes together will take to fill the cistern is:__________?

a. 5 min

b. 10 min

c. 15 min

d. 20 min

Answer- 5 min

Que- A alone can finish a work in 10 days and B alone can do it in 15 days. If they work together and finish, then out of a total wages of Rs.75. A will get:___________?

a. 35 Rs.

b. 40 Rs.

c. 45 Rs.

d. None of these

Answer- 45 Rs.

Que- 2 men and 12 women can finish a job in 4 days. 4 men and 6 women can do the same job in 5 days. Find the time taken by 1 man and 1 woman to complete the job.

a. 30 days

b. 25 days

c. 24 days

d. 20 days

Answer- 24 days

Que- Bilal can do a work in 15 days and Jalal in 12 days. If they work on it together for 4 days, the fraction of work that is left is________?

a. 03-May-2020

b. 04-Jul-2020

c. 02-May-2020

d. 01-Apr-2020

Answer- 02-May-2020

Que- A and B can finish a piece of work in 20 days .B and C in 30 days and C and A in 40 days. In how many days will A alone finish the job?

a. 48.0

b. 34(2/7)

c. 44.0

d. 45.0

Answer- 48.0

Que- If X and Y complete a certain work in 10 days, Y and Z in 16 days and X and Z in 22 days, find the time required for each one to complete the work while working separately.

a. 120, 40, 60 days

b. 120, 60, 80 days

c. 40, 30, 120 days

d. 30, 40, 60 days

Answer- 120, 40, 60 days

Que- P and Q can do a work in 30 days. Q and R can do the same work in 24 days and R and P in 20 days. They started the work together, but Q and R left after 10 days. How many days more will P take to finish the work?

a. 10.0

b. 8.0

c. 18.0

d. 19.0

Answer- 18.0

Que- A can complete a work in 12 days with a working of 8 hours per day. B can complete the same work in 8 days when working 10 hours a day. If A and B work together, working 8 hours a day, the work can be completed in_______days.

a. 5 5⁄11

b. 4 5⁄11

c. 6 4⁄11

d. 6 5⁄11

Answer- 5 5⁄11

Que- 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. 3200. They completed the work in 3 days with the help of C. How much is to be paid to C?

a. Rs. 380

b. Rs. 600

c. Rs. 420

d. Rs. 400

Answer- Rs. 400

Que- If two pipes function together, the cistern will be filled in 6 hrs. One pipe fills the cistern 5 hrs. faster than the other. How many hours it take the second pipe to fill the cistern?

a. 5 hrs

b. 10 hrs

c. 15 hrs

d. 20 hrs

Answer- 15 hrs

Que- Two pipes can fill a tank in 10 hrs. and 12 hrs. respectively while a third pipe empties the full tank in 20 hrs. If all the three pipes operate together , in how much time the tank will be filled ?

a. 7.5 hrs

b. 5 hrs

c. 7 hrs

d. None of these

Answer- 7.5 hrs

Que- A and B working separately can do a piece of work in 9 and 12 days respectively. If they work for a day alternately. If A begins first, in how many days the work will be completed ?

a. 42/4 days

b. 41/4 days

c. 55 days

d. None of these

Answer- 41/4 days

Que- 4 men and 2 woman can complete a work in 2 days. If 2 men alone take 5 days to complete the work, find the time taken by 2 women alone to complete the work.

a. 15 days

b. 10 days

c. 8 days

d. 20 days

Answer- 10 days

Que- B can work 3 times faster than A. They work together on a task and complete it in a day. How long does it take for B alone to complete the task?

a. 32 hours

b. 48 hours

c. 3 days

d. 4 days

Answer- 32 hours

Que- A and B together take 6 days to complete a task. B and C together take 12 days to complete the same task. A and C together take 8 days to complete it. If A, B and C are working together, how long does it take for them to complete the task?

a. 4(2/3) days

b. 4 days

c. 5(1/3) days

d. 1(1/3) days

Answer- 5(1/3) days

Que- A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every Third day ?

a. 12 days

b. 15 days

c. 16 days

d. 18 days

Answer- 16 days

Que- A and B together can complete a work in 1.2 days,. A alone can complete it in 20 days. If B does the work only for half a day daily, then in how many days A and B together will complete the work ?

a. 10 days

b. 11 days

c. 15 days

d. 20 days

Answer- 15 days

Que- 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

Answer- 10 days

Que- Twenty women can do a work in sixteen days. Sixteen men can complete the same work in fifteen days. What is the ratio between the capacity of a man and a woman ?

a. 31-Dec-1899

b. 31-Dec-1899

c. 31-Dec-1899

d. Data inadequate

Answer- 31-Dec-1899

Que- A and B can do a piece of work in 72 days; B and C can do it in 120 days; A and C can do it in 90 days. In what time can A alone do it ?

a. 80 days

b. 100 days

c. 120 days

d. 150 days

Answer- 120 days

Que- A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. The whole work was completed in___________?

a. 8 days

b. 10 days

c. 12 days

d. 15 days

Answer- 12 days

Que- A can do a certain work-in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in_________?

a. 15 days

b. 20 days

c. 25 days

d. 30 days

Answer- 25 days

Que- A and B can do a work in 8 days, 13, and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in_________?

a. 4 days

b. 6 days

c. 8 days

d. 12 days

Answer- 8 days

Que- A steamer goes downstream from one port to another in 4 hours, it covers the same distance upstream in 5 hours. If the speed of the stream is 2km/hr,the distance between the two parts is_______?

a. 50km

b. 60km

c. 70km

d. 80 km

Answer- 80 km

Que- The speed of a motor boat is that of the current of water as 36:5. The boat goes along with the current in 5 hours 10 min, it will come back in_______?

a. 5 hours 50 min

b. 6 hours

c. 6 hours 50 min

d. 12 hours 10 min

Answer- 6 hours 50 min

Que- The speed of a boat in still water is 5 km/hr, it can go 30km upstream and return downstream to the original point in 4 hours 30 min. The speed of the stream is_______?

a. 5km/hr

b. 8 km/hr

c. 10 km/hr

d. 15 km/hr

Answer- 5km/hr

Que- A boat covers a distance of 30 km in 2 ½ hours running downstream while returning it covers the same distance in 3 ¾ hours. What is the speed of the boat in still water?

a. 8km/hr

b. 12km/hr

c. 14 km/hr

d. None of these

Answer- None of these

Que- A boat goes 24 km downstream in 10 hours, it takes 2 hours more to cover the same distance against the stream. What is the speed of the boat in still water?

a. 2km/hr

b. 2.8 km/hr

c. 4 km/hr

d. None of these

Answer- None of these

Que- A boat running downstream covers 24 km’s in 4 hours while for covering the same distance upstream it takes 6 hours whats the speed of the boat in still water?

a. 3.5km/hr

b. 5.5 km/hr

c. 6 km/hr

d. None of these

Answer- None of these

Que- A person can row at 9 kmph and still water. He takes 4 1/2 hours to row from A to B and back. What is the distance between A and B if the speed of the stream is 1 kmph?

a. 32 km

b. 25 km

c. 28 km

d. None of these

Answer- None of these

Que- The speed at which a man can row a boat in still water is 15 kmph. If he rows downstream, where the speed of current is 3 kmph, what time will he take to cover 60 metres?

a. 10 seconds

b. 15 seconds

c. 20 seconds

d. 12 seconds

Answer- 12 seconds

Que- A boat is rowed downstream at 15.5km/hr and upstream at 8.5 km/hr. The speed of the stream is________?

a. 3.5km/hr

b. 5.75km/hr

c. 6.5km/hr

d. 7km/hr

Answer- 3.5km/hr

Que- A man can row downstream at 18 kmph and upstream at 10 kmph. Find the speed of the man in still water and the speed of stream respectively?

a. 13, 3

b. 12, 6

c. 15, 3

d. 14, 4

Answer- 14, 4

Que- A man can row 30 km downstream and 20 km upstream in 4 hours. He can row 45 km downstream and 40 km upstream in 7 hours. Find the speed of man in still water?

a. 15 kmph

b. 10 kmph

c. 12 kmph

d. 12.5 kmph

Answer- 12.5 kmph

Que- The time taken by a man to row his boat upstream is twice the time taken by him to row the same distance downstream. If the speed of the boat in still water is 42 kmph, find the speed of the stream?

a. 12 kmph

b. 13 kmph

c. 14 kmph

d. 15 kmph

Answer- 14 kmph

Que- A man can row a boat at 20 kmph in still water. If the speed of the stream is 6 kmph, what is the time taken to row a distance of 60 km downstream?

a. 20/6 hours

b. 27/2 hours

c. 30 hours

d. 30/13 hours

Answer- 30/13 hours

Que- A man rows his boat 85 km downstream and 45 km upstream, taking 2 1/2 hours each time. Find the speed of the stream?

a. 5 kmph

b. 6 kmph

c. 7 kmph

d. 8 kmph

Answer- 8 kmph

Que- The speed of a boat in upstream is 60 kmph and the speed of the boat downstream is 80 kmph. Find the speed of the boat in still water and the speed of the stream?

a. 70, 10 kmph

b. 35, 27 kmph

c. 50, 60 kmph

d. 45, 55 kmph

Answer- 70, 10 kmph

Que- The speed of a boat in still water is 60kmph and the speed of the current is 20kmph. Find the speed downstream and upstream?

a. 35, 25 kmph

b. 80, 40 kmph

c. 40, 60 kmph

d. 50, 55 kmph

Answer- 80, 40 kmph

Que- The current of a stream at 1 kmph. A motor boat goes 35 km upstream and back to the starting point in 12 hours. The speed of the motor boat in still water is_________?

a. 6 kmph

b. 7 kmph

c. 8.5 kmph

d. 8 kmph

Answer- 6 kmph

Que- A man whose speed is 4.5 kmph in still water rows to a certain upstream point and back to the starting point in a river which flows at 1.5 kmph, find his average speed for the total journey?

a. 8 kmph

b. 4 kmph

c. 2 kmph

d. 10 kmph

Answer- 4 kmph

Que- The current of a stream runs at the rate of 4 kmph. A boat goes 6 km and back to the starting point in 2 hours, then find the speed of the boat in still water?

a. 10 kmph

b. 21 kmph

c. 8 kmph

d. 12 kmph

Answer- 8 kmph

Que- A man can row 6 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and black. What is the total distance traveled by the man?

a. 6.24 km

b. 6 km

c. 5.76 km

d. 5.66 km

Answer- 5.76 km

Que- A man can row 6 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and black. How far is the place?

a. 3.12 km

b. 2.88 km

c. 3 km

d. 2 km

Answer- 2.88 km

Que- A man swims downstream 72 km and upstream 45 km taking 9 hours each time; what is the speed of the current?

a. 3 kmph

b. 1.5 kmph

c. 13 kmph

d. 6.5 kmph

Answer- 1.5 kmph

Que- A man swims downstream 30 km and upstream 18 km taking 3 hours each time, what is the speed of the man in still water?

a. 2 kmph

b. 8 kmph

c. 16 kmph

d. 4 kmph

Answer- 8 kmph