A cyclist is travelling with a uniform speed on a straight road. After traveling 700 m, one of the tyres of the cycle got punctured. He decided to cover the rest of the distance (300 m) by walking with the cycle. He covers the remaining 300 m in 7 minutes.
If the cyclist takes a total of 12 minutes to complete his journey, then what is his average speed during the journey?
| A | 23.81 m/min | ||
| B : | 61.28 m/min | ||
| C : | 83.33 m/min | ||
| D : | 97.48 m/min |
Solution:
In the whole journey,total distance travelled=700+300=1000m
total time taken=12 min
Average speed=total distance travelled / total time taken
=1000/12=83.33 m/min
Hence option (c) is correct.