Rate and Goal Amount

Question

So I’m trying to count to 8000. If I count by fours but I count 5 times in 7.12 seconds how long will it take to count to 8000?

Answer 1

You count 20 every 7.12 seconds

8000/20 = 800/2 = 400

Multiply 400 x 7.12 seconds to get

28.48 x 100 = 2848 seconds

divide by 60 to get the minutes

2848/60 = 474 2/3 minutes

divide by 60 to get the hours

474 2/3 / 60 = 7.9111... hours

almost 8 hours