Question 878765
we know that 

{{{speed = distance/time}}}

so {{{time = distance/speed}}}
here speed = 60mph and distance = 1.6 miles

so {{{time = 1.6/60}}}

time = 0.02666666666 hours

since 1 hour = 60 mins, 

0.02666666666 * 60 = 1.6 mins.. that is when travelling at 60mph, u cover 1 mile per 1 minute!