Question

An aeroplane was flying at the height of 1600m. From the time it started to land, it made a change of 70m in every minute How many minutes will it take to descend to the height of 200m.

Answer 1

Step-by-step explanation:

For 1 min it will descent by a height of 70m

To descend to a height of 200m it should descend a height of 1600−200=1400m

no of minutes it will take

$\frac{1400}{70} = 20min$

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