Question

a submerine submerges at 5m/ min .If it descends from 20 m above the sea level, how long will it take to reach 250 m below sea level​

Answer 1

Answer:

given that the submarine submerges at a speed of 5 min per minute

therefore

total distance to reach from 20 m above sea level to 250 m below sea level

       =20 m + 250 m

       =270 m

therefore

 total time taken to complete 270 m = 270 / 5

                                                             =54 min

therefore

    the submarine will take 54 min to travel from

    20 m above sea level to 250 m below sea level...

I hope this answer is quiet helpful

Step-by-step explanation:

Answer 2

Answer:

54 minutes

Step-by-step explanation:

Submarine submerges at the rate of =5m/min

descend starts from = 20m

submarine have to reach = -250m

Distance between above sea level to below sea level = 250 + 20 = 270m

time taken to reach 270 m = 270/5= 54 minutes

I hope this will help you.