distance between to places a and b is 210km two car start simultaneously from A and B in opposite directions and distance between them after 3hour is 54km if speed of one car is 8kmper hour less than that of the other than find the speed of each
Answers
Step-by-step explanation:
Distance between two places A and B is 210 km. Two cars start simultaneously from A and B in opposite direction and distance between them after 3 hour is 54 km. If speed of one car is less than that of other by 8 km per hour. Find the speed of each car.
☆ Solution ☆
☆ Given ☆
Distance between two places A and B is 210 km. Two cars start simultaneously from A and B in opposite direction and distance between them after 3 hour is 54 km. If speed of one car is less than that of other by 8 km per hour.
☆ To find ☆
The speed of each car.
☆ Step-by-Step-Explaination ☆
The distance between A and B is 210.
Two cars travelled simultaneously.
After 3 hours they travelled = 210 - 54 = 156
Speed = \frac{distance \: traveled}{time \: elapsed}Speed=
timeelapsed
distancetraveled
Let the speed of two cars is x.
x + x - 8 = \frac{156}{3}x+x−8=
3
156
2x - 8 = 52
2x = 60
x = 30 km/hr.
Speed of car A = 30 km/hr.
Speed of Car B = 22 km/hr.