human
Jessica's family is 300 km away from New York. If they are traveling at the rate of 50 km/h and stop to rest for 30 minutes every 2 hours, how long will it take them to reach New York?
assistant
How long will it take them to travel 300 km? ** Without stopping to rest they will arrive in 300/50= <<300/50=6>>6 hours.
How many times do they need to stop to rest? ** They need to stop to rest after every 2 hours except for the last 2 hour stretch of time, which is when they reach New York, so they rest (6/2)-1= 3-1 = <<6/2-1=2>>2 times.
How long do they spend resting? ** The time they spend resting is 2*30= <<2*30=60>>60 minutes or 1 hour.
How long will it take them to reach New York? ** So they will arrive in 6+1= <<6+1=7>>7 hours.
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