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

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Solution

Division of integers:
The height of an aeroplane $= 1600 m$
To descend a height of $200 m$ from the ground , it should descend a height of $1600 - 200 = 1400 m$
In one minute, it will descend to a height of $70 m$
Number of minutes taken by the aeroplane to descend to a height of $1400 m$ $= \frac{1400}{70} = 20 minutes$
Hence, an aeroplane will take $20 minutes$ to descend to a height of $200 m$ .

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

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