SOLUTION: Two brothers leave from the same point driving in opposite directions, the first brother driving at 55 miles per hour and the second at 65 mph. The first brother has a one hour hea

Question 1016512: Two brothers leave from the same point driving in opposite directions, the first brother driving at 55 miles per hour and the second at 65 mph. The first brother has a one hour head start. How long will they be able to talk on their car phones if the phones have a 230-mile range?
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
.
When the second brother starts, they 55 miles apart,
and separating at (55mph+65mph=) 120 mph.
They have (230 mi-55 mi=) 175 miles of range left.
175 mi/120 mph=1.46 hours
.
ANSWER: They will be in range for 1.46 hours
after the second brother leaves.
.

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