Question

A car takes 3.5 hours to cover 210 km. how much time will take to cover 918 km?

Answer 1

time =distance/speed

speed of car=210/3.5
speed=60km/hr

now use this speed to get answer because speed of car is same

time=distance/speed

time=918/60

time=15.3hr

Answer 2

Distance = 210 km
Time = 3.5 hours
Speed of car = distance/time = 210 /3.5 = 60 km/hour
Now in second case
Distance = 918
Speed = 60 km/hour
Time = distance /speed
= 918/ 60 = 15.3hour