**Riddle**: An alarm clock runs 4 minutes slow every hour. It was set right 3 1/2 hours ago. Now another clock which is correct shows noon.

In how many minutes, to the nearest minutes, to the nearest minute, will the alarm clock show noon?

**Answer**: In 3 1/2 hours, the alarm clock has become 14 minutes slow. At noon the alarm clock will fall behind approximately an additional minute.

Its hands will show noon in 15 minutes.