If it took Mike 3 hours to ride 162 kilometres, what was his average speed, metres per second?
1. 1.5
2. 5
3. 5.4
4. 15
5. 54
E.
1. 1.5
2. 5
3. 5.4
4. 15
5. 54
E.
IMO: E
1620000/(3*60*60) ~ 52
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If it took Mike 3 hours to ride 162 kilometres?
Source: Beat The GMAT — Problem Solving |
1km = 1000 m
162 kms = 162000 m
3Hrs = 3*60*60 = 10800 sec
Therefore metres/sec = 162000/10800 = 15m/sec
162 kms = 162000 m
3Hrs = 3*60*60 = 10800 sec
Therefore metres/sec = 162000/10800 = 15m/sec
