Friday Funny: Clocks, Calculators and Lightbulbs algebra maths puzzle

I have found another new numeric picture maths puzzle. Thanks goes to my good friend, Virginia, for inflicting this one on us.

I did get it wrong initially, so be warned… it does require a close look at the image to get the correct answer.

The puzzle image follows the standard format where it provides the answers to the first three equations, which should provide the information you need to solve the fourth equation.

Below is a poll for you to record your answer:

Please comment on how you went, but don’t give away the answer.

David

This article was originally posted on http://www.winthropdc.com/blog.