Question

A submarine submerged 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

Total depth of submergence

=250-20=230

Rate of submergence=5m/min

Total time taken to submerge=230/5

=46 min.

Answer 2

Answer:

46 min.

Step-by-step explanation:

Given: Speed of submarine$=5m/min$ & it submerged from 20m to 250m.

To find: Time taken in submerging.

We know that, $Time=\frac{Distance}{speed}$

Distance travelled in submerging from 20m to 250m is:

$250-20=230 m$

So, time taken in submerging $=\frac{230}{5}$ min

                                                 $=46 min$

#SPJ2