Answer:
10 hours
Step-by-step explanation:
Given:
Average speed of submarine = 10 mph
Speed of carrier in the opposite direction = 20 mph
Distance between the submarine and carrier = 300 mi
To find:
The time taken so that the distance between them is 300 mi ?
Solution:
The relative speed when they are traveling in opposite direction = 10+20 = 30 mph
Formula:
[tex]\text{Time }=\dfrac{\text{Distance Traveled}}{\text{Speed}}[/tex]
[tex]\text{Time }= \dfrac{300}{30} = \bold{10\ hours}[/tex]
So, the answer is 10 hours.