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A bus travels at 120 km/h for 420 km. a) Calculate the duration of the journey. b) What distance did it cover before Rubavu? c) What distance did it cover before Kigali?

Mathematics

ScanSolve AI Answer

Step-by-step solution

3 steps

Here's the solution for question 28:

The question provides the speed of a bus and the distance it travels.

Given:
Speed (vv) = 120 km/h120 \text{ km/h}
Distance (dd) = 420 km420 \text{ km}

Part a· 3 steps

At what time will the bus arrive?

  1. Use the formula relating distance, speed, and time.

    The formula for time (tt) is:

    t=dvt = \frac{d}{v}
  2. Substitute the given values into the formula.

    t=420 km120 km/ht = \frac{420 \text{ km}}{120 \text{ km/h}}
  3. Calculate the time taken for the journey.

    t=4212 hourst = \frac{42}{12} \text{ hours} t=72 hourst = \frac{7}{2} \text{ hours} t=3.5 hourst = 3.5 \text{ hours}

    Since no departure time is provided, we can only calculate the duration of the journey.
    The duration of the journey is 3.5 hours.

Part b

The distance RUBAVU covered before

This part of the question is unclear and cannot be answered as stated.

Part c

The distance KIGALI covered before

This part of the question is unclear and cannot be answered as stated.

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