Question

A submarine submerges at rate of 5m/min. It descends
from 20m. above sea level to 250m below sea level. Answer the following questions.




a)How much submarine has descended ?
(i) 250 m
(ii) 230m
(iii) 270m
(iv) 20m

b) How long will submarine take to reach 250m below sea level?
(i) 54 min.
(ii) 45 min.
(iii) 25 min.
(iv) 20 min.

Answer 1

1). 270m

2). 54 minutes.