An aeroplane was flying at a height of 1800 m. If it descends at a constant rate of 60 m per minute,
how long will it take to descend to a height of 300 m?
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17
Answer:
25 min
Step-by-step explanation:
Initial height = 1800m
Final height = 300m
thus, height descended = 1800m - 300m
= 1500m
Speed of descending = 60m/min
thus, time taken = height descended/ speed
= 1500m/ 60m/min
= 25min ( or 1500 s)
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