SOLUTION: a man covered a certain distance in 12 hours.half of the distance he covered by train at 75 km/ hr and the remaining distance he covered by car at 45 km/hr.how much distance did he
Algebra.Com
Question 980030: a man covered a certain distance in 12 hours.half of the distance he covered by train at 75 km/ hr and the remaining distance he covered by car at 45 km/hr.how much distance did he covered.
Answer by ikleyn(52803) (Show Source): You can put this solution on YOUR website!
Let x be the unknown distance (in kilometers).
Then the man spent hours to cover half of the distance moving at the speed of 75 .
Next, he spent hours to cover half of the distance moving at the speed of 45 .
The equation for the unknown distance x is
+ = 12.
Solve it step by step:
+ = 12,
+ = 12,
3x + 5x = 12*450,
8x = 5400,
x = = 675.
Answer. The distance is 675 km.
RELATED QUESTIONS
A person covered some distance in 12 hours. He covered half the distance by rail @ 75 km... (answered by ptaylor)
. Out of a 940 Km journey, a part of the journey was covered by a motor car at a speed of (answered by stanbon)
A man completed a trip of 136 km in 8 hours. Some parts of his trip was covered at... (answered by ikleyn)
A distance of 33 KM is covered in 1 hr. 12 minutes. If the first 15 KM is covered at the... (answered by lwsshak3)
a man completes a trip of 136 km in 8 hours some part of the trip was covered at 15 km/hr (answered by Alan3354)
A Train is running at a speed of 130 km/hr. Find the distance covered by the train in 42... (answered by macston)
10. A motorist covered a journey of 690 km in 8 hours. He covered part of the journey at... (answered by josmiceli)
A motorist covered a journey of 690 km in 8 hours. He covered part of the journey at 90... (answered by josgarithmetic)
One day Ayaan covered a distance of 24 km at x km/hr and another 40 km at y km/hr. Next... (answered by ankor@dixie-net.com)