One-third of a journey is covered at a speed of 56 km/hr, the next one-third of the journey at a speed of 7 km/hr and the remaining part at a speed of 14 km/hr. What will be the average speed of the whole journey (in km/hr, rounded off to 1 decimal place)?
Subject: Mathematics | Topic: Arithmetic | Difficulty: MEDIUM
Options
- (A) 13.6
- (B) 12.9
- (C) 7.9
- (D) 18.1
Verified Answer
Option (B): 12.9
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