Tom drives a truck. his regular trip is a distance of 280 km. he drives at an average speed of 80 km/h.

for safety reasons tom’s boss puts a speed limiter on his truck. this reduces tom’s average speed by 10 km/h.

4 hours.

Step-by-step explanation:

Tom drives his regular trip of distance = 280 km.

He drives at an average speed of = 80 km/hour

To calculate the time the formula is

Time =  

He takes time to complete his trip =  

                                                         = 3.5 hours

His boss puts a speed limiter on his truck. This reduces Tom's average speed by 10 km/hour

Now the new speed would be = 80 - 10 = 70 km/hour.

=  

= 4 hours

Earlier Tom took 3.5 hours now he will take 4 hours to complete his trip.

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