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.
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?
1 answer