a car travells 20km at an average speed of 48km an hour and next for a further 15 minutes t an average speed of 40km an hour.Calculate the speed for his entire journey
Answers: better stale asking in the arithmetic section. but since you asked...
distance = rate * time
20km = 48kph *x
x = 20/48 (kph)*60(to gain minutes) = 25 minutes at 48 kph
y= 40 kph *15 min/60(to get per hour)
y = 10 km
so total distance is 30km (20+10), and the total time is 40 (25+15)
so 30/40*60 = 45 kph
60km
What make my snow plow turn when...
Answers: better stale asking in the arithmetic section. but since you asked...
distance = rate * time
20km = 48kph *x
x = 20/48 (kph)*60(to gain minutes) = 25 minutes at 48 kph
y= 40 kph *15 min/60(to get per hour)
y = 10 km
so total distance is 30km (20+10), and the total time is 40 (25+15)
so 30/40*60 = 45 kph
Have you be a martyr of road...
60km
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