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In a certain office, 72% of the workers prefer tea and 44% prefer coffee and if 40 like both...


In a certain office, 72% of the workers prefer tea and 44% prefer coffee and if 40 like both, the total number of workers in the office is : Options: (1) 200 (2) 240 (3) 250 (4) 320

 

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Dr Penny Pincher (drpennypincher) says

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