Question

It takes an underwater vehicle 2 minutes to examine a square section of the seabed for every 5 m^2 of the area. Write a formula for the time T in minutes required to survey a square section of the sea fl oor with sides that are s meters long.

Answer 1

T =
`(2)/(5) * S^2`

Explanation:

For examining an area of 5 square meter, time take in 2 min

1 square meter of area can be examined in
`(2)/(5)` mins

s^2 square meter of area can be examined in
`(2)/(5) * S^2` mins

Thus, the formula for the time T in minutes required to survey a square section of the sea fl oor with sides that are s meters long is

T =
`(2)/(5) * S^2`