if a car travels from A to B with a averege speed of 30km/h and from B to A it travels with a speed of v km/h. If the average speed of car for whole journey is 60km/h find the value of v.
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1
30+v/2= 60
30+v= 60x2
30+v=120
v=120-30
v=90km/h
Therefore, the average speed of car from B to A is 90km/h
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Answer:
therefore is 90 km per hour
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