Mathematical Reasoning第 38 / 120 题
If a car travels 180 miles in 3 hours, what is its average speed?
a.50 mph
b.60 mph
c.540 mph
d.63 mph
解析
Average speed equals distance divided by time: 180 ÷ 3 = 60 miles per hour. This uses the relationship speed = distance/time. The units confirm the answer is in miles per hour.
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