Q: 105 (CAPF/2009)

Distribution of work hours in a factory is shown in the below given table : Number of Number of workers hours worked 20 45—50 15 40—44 25 35—39 16 30—34 4 00—29 What is the percentage of workers worked for 40 or more hours ?
stats: 
0,32,80,32,32,16,32

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