Question 815748
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Hi,
An aeroplane took off at 5:20 p.m. 
and reached its destination 300 miles away at 6:50 p.m.. 
 6:50
-5:20  1:30,   traveled  1 1/2 hrs  0r 1.5hrs
D = rt   0r  r = {{{(D/t)= 300mi/1.5hr = 200mph}}}