SOLUTION: if 135 people cross a street in 40 minutes, how many cross it in 60

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Question 815272: if 135 people cross a street in 40 minutes, how many cross it in 60
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
This is a proportion problem, if you expect a uniform rate.
135%2F40=Q%2F60;
Just solve for Q.

60%28135%2F40%29=60%28Q%2F60%29
60%2A135%2F40=Q
Q=3%2A135%2F2
Q=405%2F2
You would say, Q=203, or maybe 202.
You would not count a fraction of a person. In fact, at best, you have three significant figures. If you have enough doubt about the actual number of minutes, you may be best able to estimate 200 people.