Answer:
B will take 1.034 times the time of A from Boston to Hartford.
Step-by-step explanation:
Let the distance from Boston to Hartford be S.
Person A drives at a constant speed of 55 mph for the entire trip,
Time taken by person A

Person B drives at 65 mph for half the distance and then drives 45 mph for the second half of the distance.
Time taken by person B

Ratio of time of arrival of B to A

B will take 1.034 times the time of A from Boston to Hartford.