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The time taken for a journey on a motorway varies inversely as
the average speed for the journey. The journey takes 1.5 h
when the average speed is 54 miles per hour. Identify the time
taken in hours for this journey when the average speed is 45
miles per hour.

Respuesta :

bhuvna789456

Time that will be taken at speed of 45 miles/hr is 1.8 hrs

Step-by-step explanation:

  • Step 1: Given the speed of the journey = 54 miles/hr and time = 1.5 hours. Find the distance of the journey using the speed formula.

Distance = Speed × Time

               = 54 × 1.5 = 81 miles

  • Step 2: Calculate the time taken for this journey given speed = 45 miles/hr

TIme = Distance/Speed

        = 81/45 = 1.8 hrs

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