A Physical Fitness Association Is Including the Mile Run in Its

Multiple Choice

A physical fitness association is including the mile run in its secondary-school fitness test. The time for this event for boys in secondary school is known to possess a normal distribution with a mean of 460 seconds and a standard deviation of 40 seconds. The fitness association wants to recognize the fastest 10% of the boys with certificates of recognition. What time would the boys need to beat in order to earn a certificate of recognition from the fitness association?

A) 408.8 seconds
B) 511.2 seconds
C) 525.8 seconds
D) 394.2 seconds