A man travels a total distance of 36.4 km in 4.5 hours. To cover this distance, he had walked part of the time at 3.2 kmph, and cycled for the rest at 12 kmph. How much distance did he cycle?
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Answer: 30 km
Step-by-step explanation:
Let 'd' be the distance he has cycled@12 kmph.
So, (36.4 - d) would be the distance he has [email protected] kmph.
He covers a total distance in 4.5 hours ,
thus 4.5 hr = time taken to walk + time taken to cycle
Time taken to walk = (36.4 - d)/3.2
Time taken to cycle = d/12
Hence, (36.4 - d)/3.2 + d/12 = 4.5
Solving for d, we get d = 30 km.
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