A factory makes around 5000 energy-saving lightbulbs every month, and the defects are removed by a quality control expert.
There were 16 defects in January, 17 in February, and 27 in March.
How many defects were there in January, February, and March combined?
The total number of defects in January, February, and March is:
16 + 17 + 27 = 60
Therefore, there were 60 defects in total over the three months combined.