IBPS PO Mains 2015 Paper for online practice

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Question : 27 of 200
 
Marks: +1, -0
Statment :
Many people are of the opinion that use of cell phones in offices for personal use should totally be banned. It has been found in a research study that there was significant drop in output of employees in the organisation where use of cell phones was liberally allowed vis-a-vis those organizations where use of cell phones are banned for making personal calls.
Which of the following contradicts the findings in the above statement?
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