Control Engineer Interview Questions

22,207 control engineer interview questions shared by candidates

You begin by opening every locker. Then you close every second locker. Then you go to every third locker and open it (if it's closed) or close it (if it's open). Let's call this action toggling a locker. Continue toggling every nth locker on pass number n. After 100 passes, where you toggle only locker #100, how many lockers are open?
avatar

QA Engineer

Interviewed at Walt Disney Company

3.8
Aug 14, 2015

You begin by opening every locker. Then you close every second locker. Then you go to every third locker and open it (if it's closed) or close it (if it's open). Let's call this action toggling a locker. Continue toggling every nth locker on pass number n. After 100 passes, where you toggle only locker #100, how many lockers are open?

Viewing 561 - 570 interview questions

Glassdoor has 22,207 interview questions and reports from Control engineer interviews. Prepare for your interview. Get hired. Love your job.