A train can do a certain journey in 7 hours , if it travels at 36 kmh-1. If the train train travels at 42 kmh-1, it will take
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Answer:
6 hours
Step-by-step explanation:
1st Part
Given, Time= 7 hours
Speed= 36 kmh-1
Distance= Speed*Time
= 36*7
= 252 km
2nd Part
Given , if speed=42 kmh-1
Distance= 252 km [The same distance will be taken]
Time= Distance/Speed
= 252/42
= 6 hours
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