Question

You and a friend plan to meet in San Francisco for a Giants game. The ballpark is 49 miles from your house in San Jose. With traffic, your average driving speed from start to finish is 50 miles per hour. Your friend lives in Mountain View which is 40 miles from the ballpark and he plans to drive separately. You can assume that traffic is roughly the same for your friend so that his average driving speed is also 50 miles per hour. How long does it take you to drive from your house to the ballpark? If you leave at 4pm, what time should your friend leave in order to arrive at the exact same time you do?

Step 1

My speed is 50mph and I have to cover 49 miles.

Answer: It will take 58 minutes 48 seconds for me.

Step 2

I leave at 4 pm.

So I will reach at (4...

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