Question

A submarine dove 836feet and rose at rate of 22 per minute. What was the depth of submarine after 12minutes?

Answer 1

836×12/22=456 feet
depth=836-456=380

Answer 2

Given that submarine rose at the rate of 22 per minute.

= > It's rose after 12 minutes  = 22 * 12

                                                  = 264.


Therefore the depth of submarine = 836 - 264

                                                          = 572ft.



Hope this helps!