Accompanying 5748

An accompanying vehicle set off behind the car with an oversized load moving at a speed of 16 km/h in 2.5 hours, which must reach it in 45 minutes. What speed does he have to go?

Correct answer:

v =  69.3333 km/h

Step-by-step explanation:

t2=45 min h=45:60  h=0.75 h  t1=2.5+t2=2.5+0.75=413=3.25 h v1=16 km/h  s=v1 t1=16 3.25=52 km v=s/t2=52/0.75=69.3333 km/h

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