Time - practice problems - page 2 of 165
Number of problems found: 3282
- A train 6
A train covers distances of 10 km, 20 km, and 30 km at speeds of 50 km/h, 60 km/h, and 90 km/h respectively. Find the average speed of the train in km/h. - Goods train
A goods train runs at a speed of 72 km/h and crosses a 250 m long platform in 26 seconds. What is the length of the goods train? - Beeps
An electronic device beeps after every 60 seconds. Another device beeps after every 62 seconds. They beeped together at 10 a.m. When is the next time they will beep together? - A person 2
A person has 2 parents, 4 grandparents, 8 great-grandparents, and so on. Find the total number of ancestors during the ten generations preceding his own. - The average age
The average age of a 5-member committee is the same as it was 3 years ago, because an old member has been replaced by a new one. Find the difference between the ages of the old and new members. - Two friends 5 Two friends, X and Y: X is 36 years old and Y is 16 years old. In how many years will X be twice as old as Y?
- The ages 3 The ages of A and B are in the ratio 5:4. Three years from now, the ratio of their ages will be 11:9. What is B's present age?
- A man 24
A man distributed €25,300 among his 3 sons A, B, and C such that the amounts of their portions, with 10% simple interest over 2 years, 3 years, and 4 years respectively, will be equal. What is A's share? - Train station
A man walks from his house to the station. If he walks at 5 km/h, he misses a train by 7 minutes. However, if he walks at 6 km/h, he reaches the station 5 minutes before the train departs. Find the distance from his house to the station. - Doubling - simple interest
A sum of money doubles in 10 years at simple interest. Find the annual interest rate. - Body temperature
Susan's temperature is 2.5 degrees Celsius above normal. What is her temperature? - Working group 20 men complete one third of a piece of work in 20 days. How many additional men should be employed to finish the rest of the work in 25 more days?
- The tourist
A man travelled a distance of 61 km in 9 hours. He travelled partly on foot at 4 km/h and partly by bicycle at 9 km/h. Find the distance travelled on foot. - Triple the sum At what annual simple interest rate does a sum triple in 5 years?
- Susan 5
Susan has a water tank in her back garden that can hold up to 750 L of water. At the start of a rainy day (at 0:00) there are 165 L in the tank, and after a heavy day's rain (at 24:00) there are 201 L in the tank. Assuming that the rain fell at a constant - 5 yrs 5 years ago, the average age of Rasmi and Suravi was 20 years. Now, the average age of Rasmi, Suravi, and Mita is 30 years. What will be the age of Mita after 15 years?
- The boat
A boatman rows 2 km against the current in 40 minutes and returns to the same spot in 30 minutes. What is his rowing speed in still water? - A plane 3
A plane left 30 minutes later than the scheduled time. In order to reach the destination 1,500 km away on time, it had to increase its speed by 250 km/h from its usual speed. Find its usual speed. - Two trains 16
Two trains cross each other in 14 seconds when moving in opposite directions, and in 3 minutes and 2 seconds when moving in the same direction. By what percentage is the speed of the faster train greater than that of the slower train? - Usual speed 2 A passenger train takes 1 hour less for a journey of 120 km if its speed is increased by 10 km/h from its usual speed. What is its usual speed?
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