MAH MBA CET Speed Time Distance Work Questions

Two pipes can fill up a tank respectively in 3 hours and 6 hours and a third pipe can empty a tank in 9 hours. If three of them are working together then how long will it take to fill up the tank?

Two taps A and B can fill a tank individually in 6 hours and 8 hours respectively and tap C can empty the same tank in 12 hours. If all the taps are kept open, how many hours would it take to fill the tank?

Two persons A and B can complete a piece of work in 10 days and 20 days respectively. Together, they start working on the project, but A left after 4 days. How long more will B take to complete the project?

A car covers a distance from town A to town B at the speed of 58 kmph and covers the distance from town B to town A at the speed of 52 kmph What is the approximate average speed of the car?

A person travels the first 100km of his journey at 25km/hr and the next 200km at 40km/hr. Find the average speed of a person during his entire journey.

Two trains A and B are going in the same direction with the speeds of 20 km/h and 15 km/h respectively. If the starting point of B is 200 km ahead from the starting point of A, how long will it take A to meet with the train B?

A 400 m long train can cross a pole in 10 seconds. Find the time that this train will take to overtake a train of length 300m which is running at the speed of 72 km/hr in the same direction as that of the first train?

An empty tank has three inlet and two outlet pipes connected to it. An inlet pipe can fill an empty tank in 12 hours, while an outlet pipe can drain a filled tank in 10 hours. All inlet pipes have the same efficiency and both outlet pipes have the same efficiency. If all inlet pipes and outlet pipes connected to the empty tank are opened together, find the time in which the tank is completely filled.

A task is completed in a unique manner: on the first day, one man works; on the second day, two men work; on the third day, three men work, and so on, until the task is finished in 15 days. The same task is then assigned to women, who are known to be 40% as efficient as men. Following the same pattern, calculate the number of days required for the women to complete the task. (Round up to the nearest integer.)

P, Q, and R can complete a task in 10, 15, and 20 days, respectively. P and Q start working on the task together, and after 3 days, R joins, and P leaves. If they work together for 3 more days, what fraction of the task is left to be completed?

Ravi and Raju started from a same point on a circular track in opposite direction. They met at 11 distinct points. Had they travelled in same direction they would have met at 5 distinct points. If Raju who is fastest amoung two, can travel 1200m in 15 sec, then in what time can Ravi travell the same distance?

Anuj and Bharat start running towards each other simulatenously, starting from points P and Q, respectively. They meet somewhere in between and continue on their journeys to Q and P, respectively. Anuj reaches Q 4 hours after meeting Bharat. Given that it took Anuj 10 hours to reach Q from P, how much time did Bharat take to reach P from Q?

A train takes 20 seconds to cross a pole. It crosses a platform 1000 meters long in 100 seconds. What is the train's speed?

A train starts from Mumbai towards Bengaluru at a speed of 80 kmph. After half an hour, another train from Bengaluru starts running towards Mumbai at a speed of 100 kmph. Find the distance travelled by the slower train when both the trains meet if the distance between Mumbai and Bengaluru is 940 kms.

A bus covers a distance of first 50 km in 40 minutes, next 50 km at a speed of 2 km per minute and the next 30 km at a speed of 1.0 km per minute. What is its average speed during the entire journey ?

Sunil Makihija can check the quality of 1000 items in 5 hours and Nilesh Desai can complete 75% of the same job in 3 hours. How much time is required for both of them to check 1300 items, if Nilesh stops checking after 2 hours ?

The speed of a boat in still water is 5 km/hr. If it takes thrice as much time to go 20 km upstream as to go the same distance downstream, find the speed of the stream.

A ship 156 km from the shore develops a leak which admits 2.5 metric tons of water in 6 minutes and 30 seconds. A quantity of 68 metric tons would □suffice to sink the ship, but luckily the ship's pumps can throw out 15 metric tons in an hour. The average rate of sailing so that it just reaches the shore from where it left as it begins to sink should be :

Pipe A, B and C are kept open and together fill a tank in t minutes. Pipe A is kept open throughout, pipe B is kept open for the first 10 minutes and then closed. Two minutes after pipe B is closed , pipe C is opened and is kept open till the tank is full. Each pipe fills an equal share of the tank. Furthermore, it is known that if pipe A and Bare kept open continuously, the tank would be filled completely in t minutes. How long will it take C alone to fill the tank ?

If a certain wheel turns at a constant rate of x revolutions per minute, how many revolutions will the wheel make in k seconds?