What's the Correct Time?Math brain teasers require computations to solve.
I recently gave a new watch to my friend for their birthday. However, as usual with my presents, it was quite useless, as it gains 6 minutes every hour. I set it using my own accurate clock at midnight, and the watch now shows 8:26 am. I know that it stopped 30 minutes ago, so what is the correct time now?
Answer8:10 am.Since the watch is gaining 6 minutes every hour, for every real hour that has passed, the watch will show 66 minutes. Since the watch shows 8:26 am, we know that 506 watch minutes have passed. This therefore equals 460 real minutes and hence 7 hrs and 40 minutes. The watch stopped 30 minutes ago, therefore the time must now be 8:10 am. Hide What Next?
Tweet
See another brain teaser just like this one... Or, just get a random brain teaser If you become a registered user you can vote on this brain teaser, keep track of which ones you have seen, and even make your own. Back to Top |
