Answer:
840 km/hr
Time = 1 hr + 40 min = 1 hr + 40/60 hr
so time is = 1.6667 hr
and Distance = 1,400 km
aeroplane speed = Distance/Time = 1400/1.6667 km/hr
speed = 839.98 km/hr approx. 840 km/hr
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Answer:
840 km/hr
Time = 1 hr + 40 min = 1 hr + 40/60 hr
so time is = 1.6667 hr
and Distance = 1,400 km
aeroplane speed = Distance/Time = 1400/1.6667 km/hr
speed = 839.98 km/hr approx. 840 km/hr