SOLUTION: If 85 cars came passing by in 13 mins? Then how many cars will come passing by in 50 minutes?

Question 528855: If 85 cars came passing by in 13 mins? Then how many cars will come passing by in 50 minutes?
Found 2 solutions by rfer, solver91311:
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
85/13=x/50
13x=4250
x=4250/13
x=329
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

As posed, your question has no valid, supportable answer. Had you stated that the traffic flow rate was a constant over the entire period of the experiment, that is to say for the 13 minute period of empirical data gathering and for the 50 minutes for which you are trying to predict, then it is a simple matter of dividing 50 by 13 and then multiplying the result by 85, rounding to the nearest whole number (a fraction of a passing car being an absurd concept). But what happened during a 13 minute period between say 2:00 and 3:00 PM on a weekday afternoon would not provide you any useful information to predict what would happen for a 50 minute period in the wee hours (2:00 to 3:00 AM for example) on Monday morning. Since your question provides no information that would allow anyone to assume consistency of traffic rates during the 13 minute and 50 minute periods, your question has no answer.

John

My calculator said it, I believe it, that settles it

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