Question : Direction: An aeroplane covers a distance at a speed of 340 km/h in 8 hours. To cover the same distance in hours, it must travel at what speed?
Option 1: 660 km/h
Option 2: 700 km/h
Option 3: 680 km/h
Option 4: 1020 km/h
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Correct Answer: 1020 km/h
Solution :
Given:
Speed = 340 km/h
Time = 8 hrs
Distance = speed × time
= 340 × 8
= 2720 km
Time =
hrs = 8/3 hrs
Required speed =
Distance ÷ Time
= 2720 ÷ 8/3
= 2720 × 3/8
= 1020 km/h
Hence , fourth option is correct.
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