At a certain speed, the wheel of a bicycle rotates 100 xx per minute and at this speed, the bicycle travels 11 km in 11 minutes. What is the diameter of the wheel?

A vehicle is running the first 150 kilometer at the same speed. Then next 200 kilometer running at a speed of 20 kilometer per hour more than the first speed. Total time taken to travel is 5 hours. What is the initial speed of the vehicle?

A car travels with a speed of 25 m//s for 2 minutes and then with 20 m//s for 1 minute.What is its average speed?

A wheel is of radius 30 cm. If the wheel revolves 200 times in one minute then find the speed of wheel in km/hour.

If the velocity of a train starting from rest becomes 72km/h in 10minute. Calculate the distance travelled by the train within this time interval.

Rahim travelled 350 kilometres in a train and 150 kilometres in a bus. The average speed of the 'train was 70 km / h . The bus trip lasted 5 hours. What is the average speed of the entire trip?

If a young man rides his motor cycle at 25 k . p . h , he has to spend Rs. 2 per km on petrol, if he rides it at ạ faster speed of 40k.p.h. , the petrol cost increases to Rs. 5 per k m . He has Rs. 100 to spend on petrol and wishes to find what is the maximum distance, he can travel within the hour. Express this as a linear programming problem and then solve it.

A car travels with a speed of 25 m//s for 2 minutes and then with 20 m//s for 1 minute.Calculate the total distance travelled by the car.