A car travelling at a constant speed cover a distance of 360 km in 8 hours . what distance will it cover in 15 hours ?Also find the time taken to travel 315 km.
Answers
Distance = 360 km
Time = 8 hours
First, we will find the speed of the car
Speed = distance/time
= 360/8
= 45 km/hr
1)Now, we have to find the distance covered in 15 hours
Speed = distance/time
45 = distance/15
distance = 45 × 15
= 675 km
Hence, the car will cover a distance of 675 km in 15 hours
2)Also, we have to find the time taken to travel 315 km
Speed = distance/time
time = distance/ speed
= 315/45
= 7 hours
Hence, to travel a distance of 315 km the time taken will be 7 hours
Given,
Distance travel at a constant speed = 360 km
Time take to travel that distance = 8 hours
Let the constant speed be x then,
We know that,
Speed = Distance/Time
⇒x = 360km/8hours
⇒x = 45km/hour
∴The constant speed of car = 45km/hour
Speed is constant means it will not change so,
Speed of car = 45km/hour
Time = 15hours [Given]
Let the distance be y then,
We know that,
Speed = Distance/Time
⇒Distance = Speed*Time
⇒y = (45km/hour)*15hour
⇒y = 675km
∴Distance covered in 15hours is 675km
Speed is constant means it will not change so,
Speed of car = 45km/hour
Distance = 315km [Given]
Let Time taken to travel 315km be z
We know that,
Speed = Distance/Time
⇒Time = Distance/Speed
⇒z = 315km/(45km/hour)
⇒z = 7hour
∴Time taken to travel 315km is 7hour