Question

A motorist does the first part of his journey at an average speed of 54km/hour. he then increases his speed to 60 km/h for the rest of the journey . if he travel 255 km in 4 hours, what is the distance travelled for the first part of the journey​

Answer 1

Answer:

time at slower speed --- x hrs

time at faster speed ---- 4-x hrs

54x + 60(4-x) = 225

solve for x, then evaluate 54x to find distance at slower speed

Step-by-step explanation:

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