Bunuel wrote:
Guy drives 60 miles to attend a meeting. Halfway through, he increases his speed so that his average speed on the second half is 16 miles per hour faster than the average speed on the first half. His average speed for the entire trip is 30 miles per hour. Guy drives on average how many miles per hour during the first half of the way?
A. 12
B. 14
C. 16
D. 24
E. 40
Since overall average speed is 30.
\(30 = \frac{2*x*(x+16)}{2x+16}\)
testing options..
D
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