Question

1 An elevatar descends into a mine shaft the rate of min 8 m/min .If the descens
stan from 20m above the ground level. how long will it take to reach 400
​

Answer 1

Answer:

distance above the ground = 20m

distance to be travelled below it = 400m

total distance = 420m

speed = 8m/min

time = 420/8

= 52.5min

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