train travel from hong kong to beijing it traveled at an average speed of 160 km/m in the first 4 hours. after that it traveled
another average speed of 180 km/m. if the distance between hong kong to bejing is 1180 km, what was the total time for the whole journey?
2 answers:
Answer:
7 hours
Explanation: step 1. 160x4=640
step 2. 1180-640=540
step 3. 540÷180=3
step 4. 3+4=7
Answer:
7 hours
Explanation:
Speed of train in first 4 hours = 160 km/h
Speed of train after 4 hours = 180 km/h
Distance = Speed × Time

Distance traveled in first 4 hours = 640 km
Distance remaining = 1180-640 = 540 km
Time = Distance / Speed

Total time taken by the train is 4+3 = 7 hours
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