an aeroplane ws flying at a hight of 1600 m.From the time it started to land ,it made a change of 70 m.in every min. How many min.will it take to descend to a hight of 200 m.
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twenty minutes according to the following solution
intial height was 1600m but it ends at 200m so you subtract it remains 1400m but for every 70m it consumes 1minute thus
1400m/70m=20 minutes
intial height was 1600m but it ends at 200m so you subtract it remains 1400m but for every 70m it consumes 1minute thus
1400m/70m=20 minutes
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