Linda left her home at 08.15 a.m. She drove a distance of 275km and arrived at her father's home at 11.00 a.m. Determine the average speed, in km/h, for Linda's journey.
Question
Linda left her home at 08.15 a.m. She drove a distance of 275km and arrived at her father's home at 11.00 a.m. Determine the average speed, in km/h, for Linda's journey.
Solution
To calculate the average speed, we need to know the total distance travelled and the total time taken.
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First, we determine the total time taken for the journey. Linda left her home at 08.15 a.m. and arrived at her father's home at 11.00 a.m. So, the total time taken is 11.00 - 08.15 = 2.75 hours.
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Next, we know that the total distance travelled is 275 km.
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The formula for average speed is total distance travelled divided by total time taken. So, we divide the total distance by the total time to get the average speed.
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Therefore, the average speed is 275 km / 2.75 hours = 100 km/h.
So, Linda's average speed for her journey was 100 km/h.
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