Each day, Sal swims a lap 1 second faster than on the day before. If Sal swims a lap in 60 minutes on the 1 st day, on what day does he swim a lap in $$\(10 \%\)$$ less time than the 1 st day?
A.
359 th
B.
360 th
C.
361 st
D.
362 nd
Exam No：2018 First Round Grade 5 Year：2018 Question No：27
Answer:
C
Knowledge points:
G5 - Arithmetic - Multi-Step Word Problems
Solution:
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