A truck covers a distance of 360 km at a certain speed in 8 hours.
A truck covers a distance of 360 km at a certain speed in 8 hours. How much time would a car take at an average speed which is 18 kmph more than that of the speed of the truck to cover a distance which is 14 km more than that travelled by the truck ?
Answer/Solution
8 hours
Steps/Work
Explanation :
Speed of the truck = Distance/time = 360/8 = 45 kmph
Now, speed of car = (speed of truck + 18) kmph = (45 + 18) = 63 kmph
Distance travelled by car = 360 + 81 = 441 km
Time taken by car = Distance/Speed = 441/63 = 8 hours.
Answer – D
Speed of the truck = Distance/time = 360/8 = 45 kmph
Now, speed of car = (speed of truck + 18) kmph = (45 + 18) = 63 kmph
Distance travelled by car = 360 + 81 = 441 km
Time taken by car = Distance/Speed = 441/63 = 8 hours.
Answer – D