Hi,

time in minutes at 65mph is  = .23h = 13.85 min 

 15m/8.85min = 1.7mpmin 0r 102mph 

Answer by josgarithmetic(39618)   (Show Source): You can put this solution on YOUR website!
 What is the normal time, if 65 mph?

RT=D

T=D/R

T=15/65 hours





Five Minutes Less Time:

What speed?

R=D/t and you want , because five minutes is 1/12 hour

-

 mph

Using decimalized numbers,  mph 

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