A car starts running with the initial speed of 40 kmph, with its speed increasing ever hour buy 5 kmph. How many hours will it take to cover a distance of 385 km? `7\ hou r s` b. `9\ hou r s` c. `8 1/2hou r s` d. `9 1/2hou r s`

A car starts running with the initial speed of 40 km/h with its speed increasing every hour by 5 km/h. How many hours will it take to cover a distance of 385 km?

A bus starts running with the initial speed of 21 km/hr and its speed increases evry hour by 3 km/kr . How many hours will it take to cover a distance of 252 km ?

A car covers a distanced of 432 km at the speed of 48 km/hr. In how many hours will the car cover this distance? 6 hou r s b. 7 hou r s c. 9 hou r s d. 12 hou r s e. none of these

A car takes 15 minutes less to cover a distance of 75 km, if it increases its speed by10 km/hr from its usual speed. How much time would it take to cover a distance of 300 km using this speed? 5 hou r s b. 5 1/2hou r s c. 6 hou r s d. 8 6 1/2 hours