5 m/sec or 300m / min
using speed = 
change 5 min 20 sec to seconds = (5 × 60) + 20 = 320 sec
speed =
= 5m / second or
speed = 60 × 5 = 300m / minute
Yes it is indeed nothing else can be done to this problem
Answer:
66 = s
Step-by-step explanation:
s + 24 = 90
90 = s + 24
90 - 24 = s
66 = s