A man on tour travels 160 `k m` by car at 64 `k m//h r` and another 160 km by bus at 80 `k m//h r` . The average speed for the whole journey is `3. 55\ k m//h r` b. `71. 11\ k m//h r` c. `36\ k m//h r` d. `71\ k m//h r`

A man, on tour, travels first 160 km at 64 km/h and the next 160 km at 80 km/h. The average speed for the first 320 km of the tour is

A car travels the first one-third of a certain distance with a speed of 10 k m//h r the next one-third distance with a speed of 20 k m//h r and the lat one-third distance with a speed of 60 k m//h r . The average speed of the car for the whole journey is 18 k m//h r b. 24 k m//h r c. 30 k m//h r d. 36 k m//h r

A cyclist rides 24 km at 16 kmph and further 36 km at 15 kmph. Find his average speed for the journey. 15. 38 k m//h r b. 15. 5 k m//h r c. 16 k m//h r d. none of these

A car travels the first one third of a certain distant with a speed of 10 km/hr, the next one third distant with a speed of 20 km/hr and the last one third distance with a speed of 60 km/hr. The average speed of the car for the whole journey is 18 k m//h r b. 24 k m//h r c. 30 k m//h r d. 36 k m//h r

A man travels 600 km by train at 80 km/hr, 800 km by ship at 40 km/hr, 500 km by aeroplane at 400 km/hr and 100 km by car at 50 km/hr. What is the average speed for the entire distance? a. 60 k m//h r b. 62 k m//h r c. 60 5/(123) k m//h r d. 6 5/(123)k m//h r

A train travels at a speed of 30 km/hr for 12 minutes and at a speed of 4 km/hr for the next 8 minutes. The average speed of the train for this journey is 30 k m//h r b. 36 k m//h r c. 37. k m//h r d. 48 k m//h r

A man's speed with the current is 15 km / hr and the speed of the current is 2.5 km/ hr. The man's speed against the current is: 8. 5\ k m//h r b. \ 9\ k m//h r c. 10\ k m//h r d. 12. k m//h r

A boy rides his bicycle 10 km at an average speed c: 12 km/hr and again travels 12 km at an average speed of 10 km/hr. His average speed for the entire trip is approximately 10. 4 k m//h r b. 10. 8 k m//h r c. 1 k m//h r d. 12. 2 k m//h r

A journey of 192 km between two cities takes 2 hours less by a fast train than by a slow train. If the average speed of the slow train is 16 km/hr less than that of the fast train, then the average speed of the fast train is 32 k m//h r b. 48 k m//h r c. 36 k m//h r d. 64 k m//h r