17-03-2020
Mathematics

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A car covers 635km by going for 4 hours at a certain speed,then for 3 hours at 4km/h faster,and then for 2 hours at 5 km/h slower.find the first speed.

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17-03-2020

First speed is 158.75 km/hr

Step-by-step explanation:

Step 1: Given the car travels 635 km in 4 hours. Find speed of the car.

Use formula for Speed = Distance/Time

⇒ Speed = 635/4 = 158.75 km/hr

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