A man would be 5 minutes late to reach his destination if he rides his bike at 30 km per hour.But he would be 10 minutes early if he rides at the speed of 40 km per hour.What is the distance of his destination from where he starts?

If a driver drives at the rate of 32 km/h, he reaches his destinatin 7 minutes late. If the drives at the rate of 35km/h he reaches 4 minutes earlier. How far is his destination?

After covering a distance of 30 km with a uniform speed there is some defect in a train engine and, therefore, its speed is reduced to 4/5 of its original speed. Consequently, the train reaches its destination late by 45 minutes. Had it happened after covering 18 kilometres more, the train would have reached 9 minutes earlier. Find the speed of the train and the distance of journey.

A man has to walk a certain distance. He finds that if he walked 1/4 of a km an hour faster he will take 20 minutes less, but if he walks 1/2 km an hour slower he will take 52 minutes more. Find the distance and his rate of walking.

A plane left 30 minutes later than the schedule time. In order to reach its destination 1500 km away in time, it has to increase the speed by 250 km/hour. Find its usual speed.

The wheels of a car are of diameter 80 cm each. How many complete revolutions does each wheel make in 10 minutes when the car is travelling at a speed of 66 km per hour ?

A man walks a certain distance at a certain speed. Had he walked 1/2 km/hrfaster, he would have, taken 1 hour less. But if he had gone 1 km/hr slower, he would have taken 3 hours more. Find the distance.

A man walks at 1m/s for 60 minutes he takes rest for 20 minutes and then walks at a seed of 1m/s for 60 minutes find his average speed.

A man rides his motorcylcle at the speed of 50 km/hour. He has to spend Rs.2 per km on petrol. If the rides it as a faster speed of 80 km/hour, the petrol cost increases to Rs.3 per km. he has atmost Rs.120 to spend on petrol and one hour's time, He wishes to find the maximum distance that he can travel Express this problem as a linear programming problem and solve it graphically to find the maximum distance he can travel.