Math question

Question

The average discharge at the mouth of the amazon river is 4,200,000 cubic feet per second. How much water is discharged from the amazon river in one hour? In one year?

Answer 1

1 hr = 60 minutes = 3600 seconds

 

So in 1 hr: 4,200,000 x 3600 = 15,120,000,000

 

1 year = 365 days x 24 = 8760 hours

 

so in 1 year: 15,120,000,000 x 8760 = 132,451,200,000,000