Walking with 4/5 of my usual speed, I miss the bus by 5 minutes. What is my usual time?
Pick.
A) 22  B) 77  C) 26  D) 20  E) 99
Speed Ratio = 1:4/5 = 5:4Time Ratio = 4:51 -------- 5 4 --------- ? è 20   Answer: 20
<result>D</result>
Walking with 4/5 of my usual speed, I miss the bus by 5 minutes. What is my usual time?