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Swim Lap Time Improvement

1000BeginnerCombinatoricsAlgebra

AMC 8 · 2006 · Problem 3

Elisa swims laps in the pool. When she first started, she completed 10 laps in 25 minutes. Now she can finish 12 laps in 24 minutes. By how many minutes has she improved her lap time?

Answer choices

A
\frac{1}{2}
B
\frac{3}{4}
C
1
D
2
E
3
0 students attempted0% solvedRating 1000

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