Question

. A submarine submerges at the rate of 5m/min. If it descends from 20m above the sea level, how long will it take to reach 250m below sea level?

Answer 1

Answer:

Step-by-step explanation:

Level submerged = 250 - 20

                             = 230 m  [bcoz already it is there in 20 m]

Speed of the submarine= 5m/min

Time taken= Distance/speed

                 = 230/5

                = 46 min

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