> Typically this means it should take you 15 minutes to solve and give them 45 minutes They mean 3 x m where m is how much time you think it would take for you

> Typically this means it should take you 15 minutes to solve and give them 45 minutes They mean 3 x m where m is how much time you think it would take for you to solve; so the example is: if it takes you 15mins, then give the interviewee 3 x 15 = 45mins