SOLUTION: A motorist does the first part of the journey at an average speed of 54 km/h. He then increases his speed to 60 km/h for the rest of the journey. If he travels 225 km in 4 hours, w

Question 938406: A motorist does the first part of the journey at an average speed of 54 km/h. He then increases his speed to 60 km/h for the rest of the journey. If he travels 225 km in 4 hours, what is the distance traveled for the first part of his journey?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
x the distance for the first part of his journey
..
|Multiplying thru by 540 so as all denominators = 1
10x + 9(224-x) = 2160
x = 144mi, the distance for the first part of his journey
RELATED QUESTIONS
A motorist traveled from Town A to Town B. After traveling one third of the distance for... (answered by ankor@dixie-net.com)

A motorist traveled from Town A to Town B. After traveling 13 of the distance for [4] the (answered by ankor@dixie-net.com)

A motorist traveled from Town A to Town B. After traveling 1/3 of the distance for the... (answered by TimothyLamb)

a motorist travels for one hour at an average speed of 72 km/h and then for two hours at... (answered by Alan3354,sachi)

a driver travels the first 120 km of a 200-km journey at an average speed of 40 km/h. he... (answered by josgarithmetic)

A motorist travelled from town X to town Y at an average speed of 90 km/h. after... (answered by ankor@dixie-net.com)

A motorist travels a distance of 84km. He finds that; if on the return journey he... (answered by josgarithmetic,Theo)

On a journey of 200 km, a motorist found that if he were to increase his average speed by (answered by josgarithmetic,ikleyn,math_helper)

A man jogged 3.5 km/h in 20 min. He then walked the remainder of the 5.5 km at an average (answered by ankor@dixie-net.com)