This addition to our killer interview questions collection has a definite mathematical flavour. Read on -- and don't answer too quickly!
Hammer picture from Shutterstock
Converto is a measurement firm tracking advertising, so it's not surprising that CEO Jeff Zwelling includes a mathematics question in interview rounds. Here it is:
A hammer and a nail cost $1.10, and the hammer costs one dollar more than the nail. How much does the nail cost?
If you quickly blurt out "10 cents", you're not paying attention. (If the nail cost 10 cents, the hammer cost a dollar, which would make it 90 cents more expensive.)
There's only one correct answer here, so it's not a question of how you answer, but how you handle any delay while you work it out. For a coding job, you'd ideally express the solution algebraically.
One CEO Asks This Tricky Maths Question To Size Up Candidates [Business Insider]