Question

if the quantity of parts per million were expressed as time, what would it be? 1 minute every hour 1 second every 11 days

Explanation:

Step1: Analyze "1 minute every hour"

1 hour = 60 minutes. So the fraction is $\frac{1}{60} \approx 0.0167$, which is about 16700 parts per million (since $0.0167\times10^6 = 16700$).

Step2: Analyze "1 second every 11 days"

First, convert 11 days to seconds. 1 day = 24 hours, 1 hour = 60 minutes, 1 minute = 60 seconds. So 11 days = $11\times24\times60\times60 = 950400$ seconds. The fraction is $\frac{1}{950400} \approx 1.052\times10^{-6}$, which is approximately 1 part per million (since $1.052\times10^{-6}\times10^6 \approx 1$).

Answer:

1 second every 11 days