Naomi drives to the beauty parlor in 60 minutes.
Naomi drives to the beauty parlor in 60 minutes. On the way back, her average speed is half the average speed as it was to the way to the parlor. How much time will it take Naomi to travel two round trips to the beauty parlor?
Answer/Solution
6 hours.
Steps/Work
s1=2s2
since, speed is inversely proportional to time
we have,
s1/s2=2/1=t2/t1
therefore , the time taken for one trip = 60+120 = 180 minutes
total = 180*2 =360 minutes = 6 hours
ANSWER:E
since, speed is inversely proportional to time
we have,
s1/s2=2/1=t2/t1
therefore , the time taken for one trip = 60+120 = 180 minutes
total = 180*2 =360 minutes = 6 hours
ANSWER:E