Math, asked by aryanrusia9669, 20 days ago

A train covers a distance of 670 km in 6 h 5 min. If it covers the first 390 km of the journey at 90 km/h, find its speed for the rest of the journey A bus covers 630 km in 9 h. If it completes the first two thirds of the journey at 60 km/h, calculate its speed for the rest of the journey.​

Answers

Answered by swadhine08
0

Step-by-step explanation:

Time taken to cover 390km is

90km/h

390km

=4h20min

Remaining distance =670−390=280km

Remaining time =6h5min−4h20min=45min=0.75h

Speed =

0.75

280

=364kmph

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