Answer the given question in photo
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- 30 minutes and 90 km /hm
1 st time the bus travel at the speed of 50 km/h in 12 minutes.
2 nd time the bus travel at the speed of 40 km/h for the next 18 minutes.
total distance covered by the bus during this time =
then,
50+40=90 12+18=30
so the distance bus covered in 30 min is 90 km/h
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