Walking with 4/5 of my usual speed, I miss the bus by 4 minutes. What is my usual time?	Select the correct option
A) 16 min B) 26 min C) 34 min D) 20 min E) 12 min
Speed Ratio = 1:4/5 = 5:4 Time Ratio   = 4:5 1 -------- 4 4 --------- ? è 16   16 minnswer: 16 min
<result>A</result>
Walking with 4/5 of my usual speed, I miss the bus by 4 minutes. What is my usual time?