9.An aeroplane flies 9,000 km in 5 hours.a) How far will it fly in 7 h – InterviewSolution

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9.An aeroplane flies 9,000 km in 5 hours.a) How far will it fly in 7 hours?b) How much time will it take to fly 9.900 km?

Answer»

Step-by-step EXPLANATION:

$speed \: = \frac{9000}{5} = 1800 \: km \: per \: hr$

$a). \: \: distance = speed \times time \\ = 1800 \times 7 \\ = 12600 \: km$

$b). \: \: time = \frac{distance}{speed} \\ = \frac{9900}{1800} \\ = 5.5 \: hr$

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