Question

Fred lives on the 16th floor

The elevator goes up one floor each 10 seconds
it stops at the fifth for 1 minute for people to get out
how long does it take fred to get to the 16th floor?
(Show work)

Answer 1

16 x 10
160 seconds - 2 min 40 sec

2 min 40 sec + 1 min
3 min 40 sec