Let's say it takes about 5 seconds to count to ten out loud. How many years will it take to count out loud to a billion? Ignore leap years and round your answer to one decimal place.

Guest May 22, 2017

1+0 Answers


15.9 years. Crazy, isn't it?


These type of questions are best answered with proportions:




Cross multiply and solve:



\(x=500000000secs\) (5 hundred million seconds)


Now, let's use another proportion to solve for how many years:



Cross multiply and solve again:





That's insane! Almost 16 years!

TheXSquaredFactor  May 22, 2017

8 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details