Question

a submarine submerge at the rate of 5m/min. if it desends from 20m above the see level. how long will it take to reach 250m below sea level ?
​

Answer 1

Step-by-step explanation:

Given,

Initial position = 20 m (above sea level)

Final position = 250 m (below sea level)

Total depth it submerged = (250+20) = 270 m

Thus, the submarine travelled 270 m below sea level.

Time taken to submerge 1 meter = 15 minutes

Time taken to submerge 270 m = 270 × 15 = 54 min

Hence, the submarine will reach 250 m below sea level in 54 minutes.