Mathematics · Average
A man's average driving speed for 9 hours is 88 km/hr. During the first five hours of his journey, he drove at 74 km/hr, and during the last two hours, he drove at 82 km/hr. What was his average speed (in km/hr) for the sixth and the seventh hour?
- 1101
- 2129✓
- 3120
- 492
Correct answer
129
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