How is Penny so fast?
Computer Science
Level
2
Penny and Luke were put in detention by their math teacher. They were given a list of 100 numbers each on a piece of paper and asked to check whether they are in ascending order.
- Penny completed her task quickly, taking only about 5 minutes.
- Luke took a lot of time, about 15 minutes.
Judging by the time they took, whose list is more likely to be in Ascending order?
Luke
Penny
No conclusion can be drawn
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1 solution
If Penny found that 33rd number is greater than 34th she can answer no, and Luke must look through all numbers to answer.