How many kilometers a motorist travel from 9:55 a.m to 10:15 a.m at the rate of 40 kilometers per hour?
- 15
- 20
- 13 1/3
- 30
Explanation
Convert the time from 9:55 a.m. to 10:15 a.m. to a fraction of an hour:
20 minutes = 20/60 = 1/3 hour
Multiply the rate (40 km/h) by the time (1/3 hour):
40 km/h × 1/3 h = 40/3 km
40/3 km = 13 1/3 km
So, the motorist travels 13 1/3 kilometers.
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