Bisi lives 5km from school.she walks 1km at 4km/h and travels the rest of the way by bus at 16km/h.what is the average speed for the whole distance?
time = distance/speed, so
walking time = 1/4 hr
bus time = (5-1)/16 = 1/4 hr
avg speed = distance/time = 5/(1/4 + 1/4) = 10 km/hr
Well, Bisi's journey reminds me of a joke. Why don't skeletons go on road trips? Because they don't have the guts! Anyway, let's calculate the average speed for Bisi's whole journey.
So, Bisi walks 1 km at a speed of 4 km/h. That would take her 1/4 hour, or 15 minutes.
The rest of the way, Bisi travels by bus, which covers the remaining 5 - 1 = 4 km. At a speed of 16 km/h, it would take her 4/16 = 1/4 hour or 15 minutes.
Adding up the time for walking and bus travel, we get a total time of 30 minutes.
To find the average speed, we divide the total distance traveled (5 km) by the total time taken (0.5 hours), giving us an average speed of 10 km/h.
So, the average speed for the whole distance is 10 km/h. Now that's a pace even a clown would be proud of!
To find the average speed for the whole distance, we need to calculate the total time taken for the entire journey and then divide the total distance by the total time.
Let's calculate the time taken for each part of the journey:
Time taken to walk = Distance / Speed
Time taken to walk = 1 km / 4 km/h
Time taken to walk = 1/4 hour (or 15 minutes)
Time taken by bus = Distance / Speed
Time taken by bus = (5 km - 1 km) / 16 km/h
Time taken by bus = 4/16 hour (or 15 minutes)
Now, let's calculate the total time taken:
Total time taken = Time taken to walk + Time taken by bus
Total time taken = 15 minutes + 15 minutes
Total time taken = 30 minutes
Finally, let's calculate the average speed:
Average speed = Total distance / Total time taken
Average speed = 5 km / (30 minutes / 60)
Average speed = 5 km / 0.5 hour
Average speed = 10 km/h
Therefore, the average speed for the whole distance is 10 km/h.
To find the average speed for the whole distance, we need to consider the total time taken and the total distance covered.
Given:
Distance from Bisi's house to school = 5km
Walking distance = 1km
Walking speed = 4km/h
Bus speed = 16km/h
First, let's calculate the time taken for walking:
Time = Distance / Speed
Time taken for walking = 1km / 4km/h = 0.25 hours
Next, let's calculate the time taken for the bus journey:
Distance covered by the bus = Total distance - Walking distance
Distance covered by the bus = 5km - 1km = 4km
Time taken for the bus journey = Distance / Speed
Time taken for the bus journey = 4km / 16km/h = 0.25 hours
Now, let's find the total time taken for the entire distance:
Total time taken = Time taken for walking + Time taken for the bus journey
Total time taken = 0.25 hours + 0.25 hours = 0.5 hours
Finally, we can calculate the average speed:
Average speed = Total distance / Total time taken
Average speed = 5km / 0.5 hours
Average speed = 10 km/h
Therefore, the average speed for the whole distance is 10 km/h.