Originally posted by HS Thomas:
What do the names Duesenberg, Stutz and Bugatti have in common ?
1. They are all words.
2. None of them is 42 letters long.
3. All three have repeated letters.
4. All contain a "U".
5. Saying them rapidly and in the right sequence will open the secret realm of Narnia.
6. None would make a good name for a little girl.
To qualify for the big race , Enzo needs to average 60 miles/hour overall in his two warm-up heats, each heat one mile long. In the first heat he could only muster a 30 mile per hour average. How fast must Enzo drive in his second heat to qualify for the final ? Will he be able to qualify ?
Enzo can't qualify. Why?
To average 60 mph over the two miles, he must cover the two miles in a total of two minutes or less (h1 and h2 are the heat times in minutes):
2 miles / 2 Minutes * 60 Minutes/Hour = 60 mph
h1 + h2 <= 2 Minutes
It takes two minutes to drive one mile at 30mph, which Enzo did in heat 1:
h1 = (1 Mile / 30 Miles/Hour * 60 Minutes/Hour) = 2 Minutes
Substitute the values:
2 Minutes + h2 <= 2 Minutes
The only satisfactory values for h2 are 0 or less. Enzo can't qualify.